CVE-2023-53543 — 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: 2025-10-04T16:15:49.413
• Last modified: 2026-06-18T14:29:50.373

09References

• git.kernel.org — https://git.kernel.org/stable/c/5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f
• git.kernel.org — https://git.kernel.org/stable/c/baed19c108ac8287425b93a44985bbe9a0b1af8d
• git.kernel.org — https://git.kernel.org/stable/c/ea65e8b5e6b1a34deda7564f09c90e9e80db436a
• git.kernel.org — https://git.kernel.org/stable/c/ff71709445ac033e6e250d971683110e4781c068