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CVE-2026-63801: tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done

highCVSS 7.1CVE-2026-63801

CSIRTS triage

product: tipcOther
What
A slab-use-after-free vulnerability exists in the tipc_aead_decrypt_done function.
Who is affected
Deployments using tipc may be affected.
Urgency
Remediation is necessary to prevent potential issues, though exploitation is not currently reported.
Action
Apply the patch for CVE-2026-63801.

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 7.1
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63801

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-2026-63801coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

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