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CVE-2026-52930: ipc/shm: serialize orphan cleanup with shm_nattch updates

mediumCVSS 5.5CVE-2026-52930

CSIRTS triage

Other
What
Serialization issue in IPC shared memory cleanup.
Who is affected
Systems using IPC shared memory.
Urgency
Remediation is medium priority due to moderate severity.
Action
Apply updates to IPC components to resolve serialization issues.

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 5.5
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52930

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-2026-52930coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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