CVE-2025-39701
What it is
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 ]
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 6.1.149
- Linux Kernel < 6.6.103
- Linux Kernel < 6.12.44
- Linux Kernel < 6.16.4
- Linux Kernel 6.17
- Debian Linux 11.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Fix and advisories
- 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
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
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html