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CVE-2026-43387

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: properly validate the data in rtw_get_ie_ex() Just like in commit 154828bf9559 ("staging: rtl8723bs: fix ou…

Published May 8, 2026EPSS 0.16%

Overview

CVE-2026-43387 is a medium-severity vulnerability. It was published on May 8, 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:

staging: rtl8723bs: properly validate the data in rtw_get_ie_ex()

Just like in commit 154828bf9559 ("staging: rtl8723bs: fix out-of-bounds

read in rtw_get_ie() parser"), we don't trust the data in the frame so

we should check the length better before acting on it

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/35969c3a208a07cb8642301df5869c34e2db7071Refgit.kernel.org/stable/c/6d62fa548387e159a21ea95132c09bfc96d336edRefgit.kernel.org/stable/c/740bca8bbdb707c0e4bb11e3316deb2f04fc7ce1Refgit.kernel.org/stable/c/8097a48c606a9306281ea7bd73bf2afc97553733Refgit.kernel.org/stable/c/821f7d759fb2de33c5e5b0c4981181c4d0c3e9b1Refgit.kernel.org/stable/c/9a4cd4c37593cc8b8d28f9a6732b490a8032006aRefgit.kernel.org/stable/c/ac38856092b4c994f94343251b30520bdeb7f475Refgit.kernel.org/stable/c/f0109b9d3e1e455429279d602f6276e34689750a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43387?

CVE-2026-43387 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43387?

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-2026-43387?

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-2026-43387?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43387 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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