CVE-2026-23213: drm/amd/pm: Disable MMIO access during SMU Mode 1 reset
CSIRTS triage
- What
- MMIO access is not disabled during SMU Mode 1 reset in AMD PM driver, potentially causing memory corruption or system instability.
- Who is affected
- Systems running Linux kernel with AMD GPU drivers enabled.
- Urgency
- High severity (CVSS 8.4) but not yet exploited; patching should be prioritized.
- Action
- Apply kernel security patch addressing CVE-2026-23213 when available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-23213
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.
- Low exploitation riskCVE-2026-232130.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-23213 | coverage & exploitation status | NVD · CVE.org |
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