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CVE-2026-43267

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: fix potential zero beacon interval in beacon tracking During fuzz testing, it was discovered that bss_conf->beacon…

Published May 6, 2026CWE-369EPSS 0.16%

Overview

CVE-2026-43267 is a medium-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtw89: fix potential zero beacon interval in beacon tracking

During fuzz testing, it was discovered that bss_conf->beacon_int

might be zero, which could result in a division by zero error in

subsequent calculations. Set a default value of 100 TU if the

interval is zero to ensure stability.

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

Refgit.kernel.org/stable/c/1260bee01493126cf9c872b6ca2af261173baa6dRefgit.kernel.org/stable/c/e00c9a4ec84c0bb067833b34202f457badbbc1c1Refgit.kernel.org/stable/c/eb57be32f438c57c88d6ce756101c1dfbcc03bba

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43267?

CVE-2026-43267 is a medium-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43267?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-43267?

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-2026-43267?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43267 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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