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CVE-2026-41579: runc: Malicious image with /dev symlink can trigger limited host filesystem integrity violations

lowCVSS 3.3CVE-2026-41579

CSIRTS triage

vendor: runcproduct: runcOther
What
A malicious image with a /dev symlink can trigger limited host filesystem integrity violations.
Who is affected
Deployments of runc that process malicious images.
Urgency
Remediation is low urgency due to the low severity and lack of exploitation.
Action
No specific action required at this time.

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
low — CVSS 3.3
Published
2026-07-02
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41579

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.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-41579coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for runc

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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