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CVE-2025-37808

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: crypto: null - Use spin lock instead of mutex As the null algorithm may be freed in softirq context through af_alg, use spin lo…

Published May 8, 2025EPSS 0.21%

Overview

CVE-2025-37808 is a medium-severity vulnerability. It was published on May 8, 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:

crypto: null - Use spin lock instead of mutex

As the null algorithm may be freed in softirq context through

af_alg, use spin locks instead of mutexes to protect the default

null algorithm.

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/0486de3c1b8223138dcc614846bd76364f758de6Refgit.kernel.org/stable/c/1b66a5920b7fc7cc6251192a3fcad115b6d75dd5Refgit.kernel.org/stable/c/1dd4a8561d85dea545cf93f56efc48df8176e218Refgit.kernel.org/stable/c/8cf2945512a8c0ef74ddd5b5a4f6b6a2fb1a4efbRefgit.kernel.org/stable/c/dcc47a028c24e793ce6d6efebfef1a1e92f80297Refgit.kernel.org/stable/c/e27244cbe10658a66b8775be7f0acc4ad2f618d6Refgit.kernel.org/stable/c/e307c54ac8198bf09652c72603ba6e6d97798410Refgit.kernel.org/stable/c/f7a5a5c8e1ec16a4b2041398abe95de0e14572efReflists.debian.org/debian-lts-announce/2025/05/msg00030.htmlReflists.debian.org/debian-lts-announce/2025/05/msg00045.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-37808?

CVE-2025-37808 is a medium-severity vulnerability. It was published on May 8, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-37808?

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-2025-37808?

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-2025-37808?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-37808 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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