CVE-2025-39701

In the Linux kernel, the following vulnerability has been resolved: ACPI: pfr_update: Fix the driver update version check The security-version-number check should be used rather than the runtime version check for driver updates. Otherwise, the firmware update would fail when the update binary had a lower runtime version number than the current one. [ rjw: Changelog edits ]

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-25)

Published

2025-09-05

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/79300ff532bccbbf654992c7c0863b49a6c3973c
• https://git.kernel.org/stable/c/8151320c747efb22d30b035af989fed0d502176e
• https://git.kernel.org/stable/c/908094681f645d3a78e18ef90561a97029e2df7b
• https://git.kernel.org/stable/c/b00219888c11519ef75d988fa8a780da68ff568e
• https://git.kernel.org/stable/c/cf0a88124e357bffda487cbf3cb612bb97eb97e4

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