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CVE-2026-52923: ipc: limit next_id allocation to the valid ID range

highCVSS 7.8CVE-2026-52923

CSIRTS triage

vendor: Linuxproduct: ipcOther
What
Limits next_id allocation to the valid ID range.
Who is affected
Deployments using IPC in Linux.
Urgency
Remediation is important due to the high severity rating.
Action
Update to the latest kernel version that resolves this issue.

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
high — CVSS 7.8
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-52923

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-2026-52923coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for ipc

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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