CVE-2023-53503 — 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: 2025-10-01T12:15:53.917
• Last modified: 2026-04-06T14:45:08.337

09References

• git.kernel.org — https://git.kernel.org/stable/c/100c0ad6c04597fefeaaba2bb1827cc015d95067
• git.kernel.org — https://git.kernel.org/stable/c/31668cebf45adfb6283e465e641c4f5a21b07afa
• git.kernel.org — https://git.kernel.org/stable/c/5354b2af34064a4579be8bc0e2f15a7b70f14b5f
• git.kernel.org — https://git.kernel.org/stable/c/620a3c28221bb219b81bc0bffd065cc187494302
• git.kernel.org — https://git.kernel.org/stable/c/b4319e457d6e3fb33e443efeaf4634fc36e8a9ed