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CVE-2026-63881: drm/amdkfd: fix a vulnerability of integer overflow in kfd debugger

criticalCVSS 9.8CVE-2026-63881

CSIRTS triage

vendor: Linuxproduct: AMDKFDOther
What
The vulnerability involves an integer overflow in the KFD debugger, which can lead to unexpected behavior.
Who is affected
Deployments using the AMDKFD driver in the Linux kernel.
Urgency
Remediation is critical due to the high CVSS score of 9.8, indicating severe potential impact.
Action
Update to the patched version of the kernel that resolves CVE-2026-63881.

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
critical — CVSS 9.8
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63881

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-2026-63881coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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

Recent advisories for drm/amdkfd

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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