CVE-2026-45894
CSIRTS triage
- What
- The iommu/vt-d driver fails to clear the Present bit before tearing down a PASID entry, potentially allowing memory corruption.
- Who is affected
- Systems running affected Linux kernel versions with Intel VT-d IOMMU enabled.
- Urgency
- High severity (CVSS 7.3) but not currently exploited; remediation should be prioritized.
- Action
- Apply kernel patch or update to a kernel version containing the fix for CVE-2026-45894.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.15% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 5% of all EPSS-scored CVEs.
Advisory coverage (1)
- highCVE-2026-45894: iommu/vt-d: Clear Present bit before tearing down PASID entrymsrc · 2026-08-06
External references
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