CVE-2023-3866 — In the Linux kernel, the following vulnerability has been resolved:

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

01What is this vulnerability?

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

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-08-16T14:15:27.383
• Last modified: 2026-08-04T10:18:25.907

09References

• git.kernel.org — https://git.kernel.org/stable/c/5005bcb4219156f1bf7587b185080ec1da08518e
• git.kernel.org — https://git.kernel.org/stable/c/854156d12caa9d36de1cf5f084591c7686cc8a9d
• git.kernel.org — https://git.kernel.org/stable/c/d1066c1b3663401cd23c0d6e60cdae750ce00c0f
• git.kernel.org — https://git.kernel.org/stable/c/eb947403518ea3d93f6d89264bb1f5416bb0c7d0