Known Exploited Vulnerability
9.8
CRITICAL
CVE-2023-33009
Zyxel Multiple Firewalls Buffer Overflow Vulnerabi - [Actively Exploited]
Description
A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.60 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device.
INFO
Published Date :
May 24, 2023, 1:15 p.m.
Last Modified :
April 1, 2024, 3:51 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Due Date:
Jun 26, 2023
Alert Date:
Jun 05, 2023
| 472
days
ago
Description :
Zyxel ATP, USG FLEX, USG FLEX 50(W), USG20(W)-VPN, VPN, and ZyWALL/USG firewalls contain a buffer overflow vulnerability in the notification function that could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and remote code execution on an affected device.
Required Action :
Apply updates per vendor instructions.
Notes :
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls
Public PoC/Exploit Available at Github
CVE-2023-33009 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2023-33009
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-33009.
| URL | Resource |
|---|---|
| https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Updated: 1 week, 5 days ago
516 stars
32 fork
32 watcher
Born at : April 19, 2022, 8:58 a.m.
This repo has been linked 1181 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-33009 vulnerability anywhere in the article.
-
Cybersecurity News
CVE-2024-6342: Critical Command Injection Flaw in Zyxel NAS Devices, Hotfixes Released for End-of-Support Products
Zyxel has released critical hotfixes for two of its NAS products, NAS326 and NAS542, which have already reached their end-of-vulnerability-support lifecycle. These devices are susceptible to a command ... Read more
Published Date:
Sep 10, 2024 (1 week, 1 day ago)
-
Cybersecurity News
CVE-2024-7261 (CVSS 9.8): Zyxel Patches Critical Vulnerability in Wi-Fi Devices
Zyxel, a prominent networking equipment manufacturer, has issued a security advisory urging users to promptly update their firmware to address a critical vulnerability affecting a range of their acces ... Read more
Published Date:
Sep 03, 2024 (2 weeks, 1 day ago)
The following table lists the changes that have been made to the
CVE-2023-33009 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 01, 2024
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp800_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp800_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp800_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp800_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn300_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn300_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn300_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn300_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40w:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60w:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60w:-:*:*:*:*:*:*:* Changed CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:* versions from (including) 4.60 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 15, 2023
Action Type Old Value New Value Changed Description A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.32 through 5.36 Patch 1, USG FLEX series firmware versions 4.50 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.25 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.25 through 5.36 Patch 1, VPN series firmware versions 4.30 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.25 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device. A buffer overflow vulnerability in the notification function in Zyxel ATP series firmware versions 4.60 through 5.36 Patch 1, USG FLEX series firmware versions 4.60 through 5.36 Patch 1, USG FLEX 50(W) firmware versions 4.60 through 5.36 Patch 1, USG20(W)-VPN firmware versions 4.60 through 5.36 Patch 1, VPN series firmware versions 4.60 through 5.36 Patch 1, ZyWALL/USG series firmware versions 4.60 through 4.73 Patch 1, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions and even a remote code execution on an affected device. -
CPE Deprecation Remap by [email protected]
Jun. 07, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 from (excluding) 5.36 OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 from (excluding) 5.36 -
CPE Deprecation Remap by [email protected]
Jun. 07, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 from (excluding) 5.36 OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 from (excluding) 5.36 -
Initial Analysis by [email protected]
Jun. 06, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-buffer-overflow-vulnerabilities-of-firewalls Vendor Advisory Added CWE NIST CWE-120 Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:* versions from (including) 4.32 up to (excluding) 5.36 *cpe:2.3:o:zyxel:atp800_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:atp800_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_200_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_200_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_500_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_500_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_500:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_700_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_700_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.50 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_100w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_flex_50w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_flex_50w_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_flex_50w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_20w-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_20w-vpn:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn100_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn100_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn100_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn50_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn50_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn50_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn50:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn300_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn300_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn300_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vpn1000_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:vpn1000_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vpn1000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg20-vpn_firmware:*:*:*:*:*:*:*:* versions from (including) 4.30 up to (excluding) 5.36 *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg20-vpn_firmware:5.36:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg20-vpn:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_40_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_40w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_40w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_40w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_60w_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60w_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60w:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:usg_60_firmware:*:*:*:*:*:*:*:* versions from (including) 4.25 up to (excluding) 4.73 *cpe:2.3:o:zyxel:usg_60_firmware:4.73:-:*:*:*:*:*:* *cpe:2.3:o:zyxel:usg_60_firmware:4.73:patch1:*:*:*:*:*:* OR cpe:2.3:h:zyxel:usg_60:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-33009 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-33009
weaknesses.
CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call
CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities
CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables
CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow
CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow
CAPEC-42: MIME Conversion MIME Conversion
CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File
CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links
CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags
CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion
CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog()
CAPEC-92: Forced Integer Overflow Forced Integer Overflow
CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.25 }} -0.30%
score
0.89642
percentile
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability