Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2026-43110

8.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF events brcmf_fweh_handle_if_event() validates the firmware-provided interface ind…

Published May 6, 2026EPSS 0.27%

Overview

CVE-2026-43110 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

wifi: brcmfmac: validate bsscfg indices in IF events

brcmf_fweh_handle_if_event() validates the firmware-provided interface

index before it touches drvr->iflist[], but it still uses the raw

bsscfgidx field as an array index without a matching range check.

Reject IF events whose bsscfg index does not fit in drvr->iflist[]

before indexing the interface array.

[add missing wifi prefix]

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/1ae1e1caa428844e481231f6dbe9b4f475f1d52dRefgit.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734Refgit.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12dRefgit.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6Refgit.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579cRefgit.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8eRefgit.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54Refgit.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43110?

CVE-2026-43110 is a high-severity vulnerability. It was published on May 6, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-43110?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-43110?

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-2026-43110?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43110 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.

Related HIGH CVEs from 2026

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999