CVE-2025-39701: ACPI: pfr_update: Fix the driver update version check
Vulnerability summary
CVE-2025-39701 is a high (CVSS 7.8) vulnerability in debian debian_linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.6% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 36 · Related 31Timeline
- 05-09-2025PublishedVulnerability first disclosed.
- 12-05-2026Last modifiedVulnerability information updated.
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 ]
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.19% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu122 products
- linux< 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.153-1 | < 6.12.48-1 | < 6.16.5-1
- debian_linuxEOL11.0
Linux2 products
- linux≥ 0db89fa243e5edc5de38c88b369e4c3755c5fb74, < 79300ff532bccbbf654992c7c0863b49a6c3973c | ≥ 0db89fa243e5edc5de38c88b369e4c3755c5fb74, < cf0a88124e357bffda487cbf3cb612bb97eb97e4 | ≥ 0db89fa243e5edc5de38c88b369e4c3755c5fb74, < b00219888c11519ef75d988fa8a780da68ff568e | ≥ 0db89fa243e5edc5de38c88b369e4c3755c5fb74, < 908094681f645d3a78e18ef90561a97029e2df7b | ≥ 0db89fa243e5edc5de38c88b369e4c3755c5fb74, < 8151320c747efb22d30b035af989fed0d502176e | 5.17
- linux_kernel≥ 5.17, < 6.1.149 | ≥ 6.2, < 6.6.103 | ≥ 6.7, < 6.12.44 | ≥ 6.13, < 6.16.4 | 6.17:rc1 | 6.17:rc2
3 vendors · 126 products
