CVE-2025-38717: net: kcm: Fix race condition in kcm_unattach()

mediumCVSS 5.5CVE-2025-38717

CSIRTS triage

vendor: Linux product: Linux Kernel Memory corruption

What: The kcm socket implementation contains a race condition in the kcm_unattach function.
Who is affected: Systems running affected Linux kernel versions using the kcm (kernel connection multiplexer) protocol.
Urgency: Medium severity with no exploitation reported; address in regular patching cycle.
Action: Apply Linux kernel patch fixing race condition in kcm_unattach function.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38717

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-387170.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-38717	coverage & exploitation status	NVD · CVE.org

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