9.8
CRITICAL
CVE-2021-42232
TP-Link Archer A7 Router Command Injection Vulnerability
Description

TP-Link Archer A7 Archer A7(US)_V5_210519 is affected by a command injection vulnerability in /usr/bin/tddp. The vulnerability is caused by the program taking part of the received data packet as part of the command. This will cause an attacker to execute arbitrary commands on the router.

INFO

Published Date :

Aug. 23, 2022, 1:15 a.m.

Last Modified :

Nov. 21, 2024, 6:27 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-42232 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 Tp-link archer_a7_firmware
2 Tp-link archer_a7
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-2021-42232.

URL Resource
http://archer.com Not Applicable
http://tp-link.com Vendor Advisory
https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7%28US%29_V5_20519_tddp.md
http://archer.com Not Applicable
http://tp-link.com Vendor Advisory
https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7%28US%29_V5_20519_tddp.md

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-2021-42232 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-42232 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://archer.com
    Added Reference http://tp-link.com
    Added Reference https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7%28US%29_V5_20519_tddp.md
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7%28US%29_V5_20519_tddp.md [No types assigned]
    Removed Reference MITRE https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7(US)_V5_20519_tddp.md
  • Initial Analysis by [email protected]

    Aug. 25, 2022

    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 http://archer.com No Types Assigned http://archer.com Not Applicable
    Changed Reference Type http://tp-link.com No Types Assigned http://tp-link.com Vendor Advisory
    Changed Reference Type https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7(US)_V5_20519_tddp.md No Types Assigned https://github.com/mQaLeX/IoT/blob/main/tp-link/Archer%20A7(US)_V5_20519_tddp.md Exploit, Third Party Advisory
    Added CWE NIST CWE-78
    Added CPE Configuration AND OR *cpe:2.3:o:tp-link:archer_a7_firmware:210519:*:*:*:*:*:*:* OR cpe:2.3:h:tp-link:archer_a7:v5:*:*:*:*:*:*:*
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-2021-42232 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

0.34 }} 0.10%

score

0.71465

percentile

CVSS31 - Vulnerability Scoring System
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