SARA / Free Tools / CVE / CVE-2023-52439

CVE-2023-52439 — In the Linux kernel, the following vulnerability has been resolved:

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

CVSS

7.8 HIGH

EPSS

0.30% (top 77.80%)

CWE

—

Published

2024-02-20T21:15:08.213

Last modified

2026-08-04T10:18:27.190

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

01What is this vulnerability?

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

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

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

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.

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

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

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

git.kernel.org — https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
git.kernel.org — https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea
git.kernel.org — https://git.kernel.org/stable/c/3174e0f7de1ba392dc191625da83df02d695b60c
git.kernel.org — https://git.kernel.org/stable/c/35f102607054faafe78d2a6994b18d5d9d6e92ad
git.kernel.org — https://git.kernel.org/stable/c/5cf604ee538ed0c467abe3b4cda5308a6398f0f7
git.kernel.org — https://git.kernel.org/stable/c/5e0be1229ae199ebb90b33102f74a0f22d152570
git.kernel.org — https://git.kernel.org/stable/c/913205930da6213305616ac539447702eaa85e41
git.kernel.org — https://git.kernel.org/stable/c/e93da893d52d82d57fc0db2ca566024e0f26ff50
git.kernel.org — https://git.kernel.org/stable/c/0c9ae0b8605078eafc3bea053cc78791e97ba2e2
git.kernel.org — https://git.kernel.org/stable/c/17a8519cb359c3b483fb5c7367efa9a8a508bdea

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