CVE-2026-53361: af_unix: Set gc_in_progress to true in unix_gc().

CSIRTS triage

What

There is a vulnerability related to gc_in_progress in unix_gc().

Who is affected

Deployments using af_unix are affected.

Urgency

Remediation is medium urgency due to the potential for exploitation.

Action

Apply relevant patches or updates.

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

Details

Source

Microsoft Security Response Center (INTL · vendor-psirt · site)

Severity

medium — CVSS 4.5

Published

2026-07-14

Exploitation

Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-53361

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-2026-533610.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.

Referenced CVEs

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

• medium[NEW] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
• unknownMultiple vulnerabilities in Microsoft Azure Linux (July 09, 2026)cert-fr-avis
• unknownDSA-6381-1 linux - security updatedebian
• unknownCVE-2026-53361: In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progres…nvd

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