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CVE-2025-37990

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage() The function brcmf_usb_dl_writeimage() calls the functi…

Published May 20, 2025CWE-908EPSS 0.24%

Overview

CVE-2025-37990 is a medium-severity vulnerability. It was published on May 20, 2025 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: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage()

The function brcmf_usb_dl_writeimage() calls the function

brcmf_usb_dl_cmd() but dose not check its return value. The

'state.state' and the 'state.bytes' are uninitialized if the

function brcmf_usb_dl_cmd() fails. It is dangerous to use

uninitialized variables in the conditions.

Add error handling for brcmf_usb_dl_cmd() to jump to error

handling path if the brcmf_usb_dl_cmd() fails and the

'state.state' and the 'state.bytes' are uninitialized.

Improve the error message to report more detailed error

information.

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/08424a0922fb9e32a19b09d852ee87fb6c497538Refgit.kernel.org/stable/c/508be7c001437bacad7b9a43f08a723887bcd1eaRefgit.kernel.org/stable/c/524b70441baba453b193c418e3142bd31059cc1fRefgit.kernel.org/stable/c/62a4f2955d9a1745bdb410bf83fb16666d8865d6Refgit.kernel.org/stable/c/8e089e7b585d95122c8122d732d1d5ef8f879396Refgit.kernel.org/stable/c/972bf75e53f778c78039c5d139dd47443a6d66a1Refgit.kernel.org/stable/c/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7Refgit.kernel.org/stable/c/fa9b9f02212574ee1867fbefb0a675362a71b31dReflists.debian.org/debian-lts-announce/2025/08/msg00010.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37990?

CVE-2025-37990 is a medium-severity vulnerability. It was published on May 20, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-37990?

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-2025-37990?

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-2025-37990?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37990 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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