Vulnerability Database

318,206

Total vulnerabilities in the database

CVE-2025-39823

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.

  • Published: Sep 16, 2025
  • Updated: Jan 17, 2026
  • CVE: CVE-2025-39823
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWEs:

Software From Fixed in
linux / linux_kernel 4.19 5.4.298
linux / linux_kernel 5.5 5.10.242
linux / linux_kernel 5.11 5.15.191
linux / linux_kernel 5.16 6.1.150
linux / linux_kernel 6.2 6.6.104
linux / linux_kernel 6.7 6.12.45
linux / linux_kernel 6.13 6.16.5
linux / linux_kernel 6.17-rc1 6.17-rc1.x
linux / linux_kernel 6.17-rc2 6.17-rc2.x
linux / linux_kernel 6.17-rc3 6.17-rc3.x
debian / debian_linux 11.0 11.0.x