CVE-2026-20917

EUVD-2026-56822
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
UNKNOWN
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
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intel-microcode
bookworm/non-free-firmware
vulnerable
bookworm/non-free-firmware (security)
vulnerable
bullseye/non-free
vulnerable
bullseye/non-free (security)
vulnerable
forky/non-free-firmware
vulnerable
sid/non-free-firmware
vulnerable
trixie
postponed
trixie/non-free-firmware
vulnerable
trixie/non-free-firmware (security)
vulnerable