CVE-2026-20917
MediumCVSS 4.0Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
Some Intel(R) processors are vulnerable to information disclosure caused by incorrect data forwarding during transient execution in Ring 0 (hypervisor and kernel). A system software adversary with a privileged user and a high complexity attack may enable data exposure. This requires local access but no user interaction. The vulnerability may impact system confidentiality (high), but not integrity or availability.
Risk Assessment
A local attacker with privileged access can access sensitive system data, potentially leading to confidentiality breaches.
Recommendation
Apply microcode or firmware updates provided by Intel for affected processors.
Original NVD description (English source)
Exposure of sensitive information caused by incorrect data forwarding during transient execution for some Intel(R) Processors within Ring 0: Hypervisor and Kernel may allow information disclosure. System software adversary with a privileged user combined with a high complexity attack may enable data exposure. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (none) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (none) and availability (none) impacts.