6.5
MEDIUM
CVE-2021-35036
Zyxel VMG3625-T50B Information Disclosure
Description

A cleartext storage of information vulnerability in the Zyxel VMG3625-T50B firmware version V5.50(ABTL.0)b2k could allow an authenticated attacker to obtain sensitive information from the configuration file.

INFO

Published Date :

March 1, 2022, 7:15 a.m.

Last Modified :

Sept. 30, 2022, 6:34 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-35036 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.

ID Vendor Product Action
1 Zyxel lte7480-m804_firmware
2 Zyxel nr7101_firmware
3 Zyxel nr7102_firmware
4 Zyxel ep240p_firmware
5 Zyxel pmg5317-t20b_firmware
6 Zyxel pmg5617ga_firmware
7 Zyxel pmg5622ga_firmware
8 Zyxel nr5101_firmware
9 Zyxel dx3301-t0_firmware
10 Zyxel dx5401-b0_firmware
11 Zyxel emg3525-t50b_firmware
12 Zyxel emg5523-t50b_firmware
13 Zyxel emg5723-t50k_firmware
14 Zyxel ex5401-b0_firmware
15 Zyxel ex5501-b0_firmware
16 Zyxel vmg3927-t50k_firmware
17 Zyxel vmg8623-t50b_firmware
18 Zyxel vmg8825-t50k_firmware
19 Zyxel ax7501-b0_firmware
20 Zyxel pm7300-t0_firmware
21 Zyxel pmg5617-t20b2_firmware
22 Zyxel lte3301-plus_firmware
23 Zyxel lte5388-m804_firmware
24 Zyxel lte5398-m904_firmware
25 Zyxel lte7240-m403_firmware
26 Zyxel lte7461-m602_firmware
27 Zyxel lte7480-s905_firmware
28 Zyxel lte7485-s905_firmware
29 Zyxel lte5388-s905_firmware
30 Zyxel lte7490-m804_firmware
31 Zyxel vmg3625-t50b_firmware
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-2021-35036.

URL Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-information-vulnerability 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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-35036 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-35036 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
  • Initial Analysis by [email protected]

    Sep. 30, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-information-vulnerability No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-information-vulnerability Vendor Advisory
    Added CWE NIST CWE-312
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ax7501-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abpc.2\)c0 OR cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3301-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abvy.3\)c0 OR cpe:2.3:h:zyxel:dx3301-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx5401-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abyo.2\)c0 OR cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg3525-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abpm.7\)c0 OR cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5523-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abpm.7\)c0 OR cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5723-t50k_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abom.8\)c0 OR cpe:2.3:h:zyxel:emg5723-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ep240p_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.40\(abvh.0\)c0a03 OR cpe:2.3:h:zyxel:ep240p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5401-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abyo.2\)c0 OR cpe:2.3:h:zyxel:ex5401-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5501-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abry.3\)c0 OR cpe:2.3:h:zyxel:ex5501-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte3301-plus_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abqu.6\)c0 OR cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte5388-m804_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abra.6\)c0 OR cpe:2.3:h:zyxel:lte5388-m804:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte5388-s905_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abvi.6\)c0 OR cpe:2.3:h:zyxel:lte5388-s905:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte5398-m904_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abqv.2\)c0 OR cpe:2.3:h:zyxel:lte5398-m904:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7240-m403_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00\(abmg.6\)c0 OR cpe:2.3:h:zyxel:lte7240-m403:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7461-m602_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00\(abqn.6\)c0 OR cpe:2.3:h:zyxel:lte7461-m602:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7480-m804_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abra.6\)c0 OR cpe:2.3:h:zyxel:lte7480-m804:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7480-s905_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00\(abqt.6\)c0 OR cpe:2.3:h:zyxel:lte7480-s905:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7485-s905_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abvn.6\)c0 OR cpe:2.3:h:zyxel:lte7485-s905:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7490-m804_firmware:*:*:*:*:*:*:*:* versions up to (excluding) v1.00\(abqy.5\)c0 OR cpe:2.3:h:zyxel:lte7490-m804:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr5101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abvc.6\)c0 OR cpe:2.3:h:zyxel:nr5101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr7101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abuv.7\)c0 OR cpe:2.3:h:zyxel:nr7101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr7102_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abyd.2\)c0 OR cpe:2.3:h:zyxel:nr7102:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm7300-t0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.42\(acbc.1\)c0 OR cpe:2.3:h:zyxel:pm7300-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5317-t20b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.40\(abki.4\)c0 OR cpe:2.3:h:zyxel:pmg5317-t20b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5617-t20b2_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.41\(acbb.1\)c0 OR cpe:2.3:h:zyxel:pmg5617-t20b2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5617ga_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.40\(abna.2\)c0 OR cpe:2.3:h:zyxel:pmg5617ga:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5622ga_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.40\(abnb.2\)c0 OR cpe:2.3:h:zyxel:pmg5622ga:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abtl.0\)b2r OR cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3927-t50k_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abom.8\)c0 OR cpe:2.3:h:zyxel:vmg3927-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8623-t50b_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abpm.7\)c0 OR cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8825-t50k_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.50\(abom.8\)c0 OR cpe:2.3:h:zyxel:vmg8825-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:central_america:*:*:* versions up to (excluding) 5.50\(accr.0\)b4 OR cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3625-t50b_firmware:*:*:*:*:emea:*:*:* versions up to (excluding) 5.50\(abpm.7\)c0 OR cpe:2.3:h:zyxel:vmg3625-t50b:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 27, 2022

    Action Type Old Value New Value
    Changed Description ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA due to lack of a reference providing provenance. Notes: none. A cleartext storage of information vulnerability in the Zyxel VMG3625-T50B firmware version V5.50(ABTL.0)b2k could allow an authenticated attacker to obtain sensitive information from the configuration file.
    Added CVSS V3.1 Zyxel Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Added Reference https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-cleartext-storage-of-information-vulnerability [No Types Assigned]
    Added CWE Zyxel Corporation CWE-312
  • CVE Unrejected by [email protected]

    Sep. 27, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 02, 2022

    Action Type Old Value New Value
    Changed Description A command injection vulnerability in the web interface of the Zyxel NWA-1100-NH firmware could allow an attacker to execute arbitrary OS commands on the device. ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA due to lack of a reference providing provenance. Notes: none.
    Removed CVSS V3.1 Zyxel Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Removed Reference https://www.zyxel.com/support/OS-command-injection-vulnerability-of-NWA1100-NH-access-point.shtml [No Types Assigned]
    Removed CWE Zyxel Corporation CWE-78
  • CVE Rejected by [email protected]

    Mar. 02, 2022

    Action Type Old Value New Value
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-2021-35036 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-2021-35036 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} 0.00%

score

0.26376

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability