CVE-2025-39701ACPI: pfr_update: Fix the driver update version check
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- May 12, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0db89fa243e5edc5de38c88b369e4c3755c5fb74 before 79300ff532bccbbf654992c7c0863b49a6c3973c; from 0db89fa243e5edc5de38c88b369e4c3755c5fb74 before cf0a88124e357bffda487cbf3cb612bb97eb97e4; from 0db89fa243e5edc5de38c88b369e4c3755c5fb74 before b00219888c11519ef75d988fa8a780da68ff568e; from 0db89fa243e5edc5de38c88b369e4c3755c5fb74 before 908094681f645d3a78e18ef90561a97029e2df7b; from 0db89fa243e5edc5de38c88b369e4c3755c5fb74 before 8151320c747efb22d30b035af989fed0d502176e | CNA record |
Siemens SIMATIC CN 4100 siemens:simatic_cn_4100 (from the name) | before V5.0 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.17 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4; 6.17; 6.17 | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/79300ff532bccbbf654992c7c0863b49a6c3973cpatch
- https://git.kernel.org/stable/c/cf0a88124e357bffda487cbf3cb612bb97eb97e4patch
- https://git.kernel.org/stable/c/b00219888c11519ef75d988fa8a780da68ff568epatch
- https://git.kernel.org/stable/c/908094681f645d3a78e18ef90561a97029e2df7bpatch
- https://git.kernel.org/stable/c/8151320c747efb22d30b035af989fed0d502176epatch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.