VULNERABILITY INTELLIGENCE

CVE-2025-39823

CVSS score7.8 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2025-09-16
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: use array_index_nospec with indices that come from guest min and dest_id are guest-controlled indices. Using array_index_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.

Weakness classification

  • nvd@nist.gov: CWE-129

Primary references