CVE-2024-40891
Zyxel DSL CPE OS Command Injection Vulnerability - [Actively Exploited]
Description
**UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the management commands of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device via Telnet.
INFO
Published Date :
Feb. 4, 2025, 10:15 a.m.
Last Modified :
Feb. 12, 2025, 6:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
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.
Multiple Zyxel DSL CPE devices contain a post-authentication command injection vulnerability in the management commands that could allow an authenticated attacker to execute OS commands via Telnet.
The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025 ; https://www.zyxel.com/service-provider/global/en/security-advisories/zyxel-security-advisory-command-injection-insecure-in-certain-legacy-dsl-cpe-02-04-2025 ; https://nvd.nist.gov/vuln/detail/CVE-2024-40891
Public PoC/Exploit Available at Github
CVE-2024-40891 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-2024-40891
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-2024-40891.
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).
CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild and CryptoGen Nepal aims to simplify this for the general public in a more understandable way as well as in a format that can be easily integrated into their threat intelligence systems.
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-40891 vulnerability anywhere in the article.
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TheCyberThrone
CISA Adds Microsoft and Zyxel Vulnerabilities to KEV Catalog
On February 11, 2025, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) added four vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog. These vulnerabilities, associate ... Read more
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Help Net Security
Week in review: Exploited 7-Zip 0-day flaw, crypto-stealing malware found on App Store, Google Play
Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Russian cybercrooks exploiting 7-Zip zero-day vulnerability (CVE-2025-0411) CVE-2025-0411, a Mark-of-t ... Read more
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Help Net Security
Cybercrime gang exploited VeraCore zero-day vulnerabilities for years (CVE-2025-25181, CVE-2024-57968)
XE Group, a cybercriminal outfit that has been active for over a decade, has been quietly exploiting zero-day vulnerabilities (CVE-2025-25181, CVE-2024-57968) in VeraCore software, a popular solution ... Read more
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Help Net Security
Swap EOL Zyxel routers, upgrade Netgear ones!
There will be no patches for EOL Zyxel routers under attack via CVE-2024-40891, the company has confirmed. Meanwhile, Netgear has issued patches for critical flaws affecting its routers and wireless a ... Read more
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security.nl
Zyxel waarschuwt voor actief aangevallen lekken in end-of-life modems
Zyxel waarschuwt eigenaren van verschillende modem-routers voor actief aangevallen kwetsbaarheden. De apparaten in kwestie zijn end-of-life en Zyxel zal dan ook geen updates uitbrengen om de beveiligi ... Read more
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BleepingComputer
Zyxel won’t patch newly exploited flaws in end-of-life routers
Zyxel has issued a security advisory about actively exploited flaws in CPE Series devices, warning that it has no plans to issue fixing patches and urging users to move to actively supported models. V ... Read more
The following table lists the changes that have been made to the
CVE-2024-40891 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.
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Initial Analysis by [email protected]
Feb. 12, 2025
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:zyxel:sbg3300-n000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:sbg3300-n000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:sbg3300-nb00_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:sbg3300-nb00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:o:zyxel:sbg3500-n000_firmware:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:sbg3500-nb00_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:sbg3500-nb00:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg1312-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg1312-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg1312-b10b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg1312-b10b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg1312-b10e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg1312-b10e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3312-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg3312-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3313-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg3313-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3926-b10b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg3926-b10b:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4325-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg4325-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4380-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg4380-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8324-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg8324-b10a:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8924-b10a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg8924-b10a:-:*:*:*:*:*:*:* Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025 No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025 Vendor Advisory -
CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725
Feb. 12, 2025
Action Type Old Value New Value Added Date Added 2025-02-11 Added Due Date 2025-03-04 Added Required Action The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable. Added Vulnerability Name Zyxel DSL CPE OS Command Injection Vulnerability -
New CVE Received by [email protected]
Feb. 04, 2025
Action Type Old Value New Value Added Tag unsupported-when-assigned Added Description **UNSUPPORTED WHEN ASSIGNED** A post-authentication command injection vulnerability in the management commands of the legacy DSL CPE Zyxel VMG4325-B10A firmware version 1.00(AAFR.4)C0_20170615 could allow an authenticated attacker to execute operating system (OS) commands on an affected device via Telnet. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-insecure-default-credentials-vulnerabilities-in-certain-legacy-dsl-cpe-02-04-2025
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-40891 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-2024-40891
weaknesses.