CVE-2025-39701
High
Description
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 ]
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 5, 2025
First seenSep 5, 2025
How to fix
Update
- linux linux_kernel6.1.149, 6.6.103, 6.12.44, 6.16.4 or later
Patches
- git.kernel.org/stable/c/79300ff532bccbbf654992c7c0863b49a6c3973c
- git.kernel.org/stable/c/8151320c747efb22d30b035af989fed0d502176e
- git.kernel.org/stable/c/908094681f645d3a78e18ef90561a97029e2df7b
- git.kernel.org/stable/c/b00219888c11519ef75d988fa8a780da68ff568e
- git.kernel.org/stable/c/cf0a88124e357bffda487cbf3cb612bb97eb97e4
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.17 ≤ v < 6.1.149, 6.2 ≤ v < 6.6.103, 6.7 ≤ v < 6.12.44, 6.13 ≤ v < 6.16.4, 6.17 | 6.1.149, 6.6.103, 6.12.44, 6.16.4 |
| debian debian_linux | 11.0 | — |
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