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CVE-2021-29302

8.1 · HIGH

TP-Link TL-WR802N(US), Archer_C50v5_US v4_200 <= 2020.06 contains a buffer overflow vulnerability in the httpd process in the body message.

Published Apr 12, 2021CWE-120EPSS 5.91%

Overview

CVE-2021-29302 is a high-severity vulnerability. It was published on April 12, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

TP-Link TL-WR802N(US), Archer_C50v5_US v4_200 <= 2020.06 contains a buffer overflow vulnerability in the httpd process in the body message. The attack vector is: The attacker can get shell of the router by sending a message through the network, which may lead to remote code execution.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/liyansong2018/CVE/tree/main/2021/CVE-2021-29302Refstatic.tp-link.com/beta/2021/202103/20210319/TL-WR802Nv4_US_0.9.1_3.17_up_boot%5B210317-rel64474%5D.zipRefwww.tp-link.com/us/support/download/tl-wr802n/#FirmwareGitHubgithub.com/liyansong2018/CVE/tree/main/2021/CVE-2021-29302Refstatic.tp-link.com/beta/2021/202103/20210319/TL-WR802Nv4_US_0.9.1_3.17_up_boot%5B210317-rel64474%5D.zipRefwww.tp-link.com/us/support/download/tl-wr802n/#Firmware

How CyberStrike helps

Frequently asked questions

What is CVE-2021-29302?

CVE-2021-29302 is a high-severity vulnerability. It was published on April 12, 2021 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2021-29302?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-29302?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-29302?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-29302 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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