01 Record

CVE-2026-31486

hwmon: (pmbus/core) Protect regulator operations with mutex

HighPUBLISHEDCNA: Linux

CNA base score7.1 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

View raw JSON

02 Description

hwmon: (pmbus/core) Protect regulator operations with mutex

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.7% of scored records. A rank, not a probability.

NVD base score

7.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-10-19.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-04-22 13:54Z6 MO AGO

Last updated

2026-10-19 18:45Z9 DAYS AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
CWE-667Improper LockingClass

Data version

5.2

Document digest

3d2818798c9429733d9c4fade6560c3b10af98b971c7342e2fad379022c0bafc

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 to < b26849cffaa7c43355b82e9bef3725e786973a1a, ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 to < acf04e2863132f6d9222f71f3a76fb9782cbe061, ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 to < 4e9d723d9f198b86f6882a84c501ba1f39e8d055, ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 to < 2c77ae315f3ce9d2c8e1609be74c9358c1fe4e07, ddbb4db4ced1ba784fcd3500179a7291b6c5d7b7 to < 754bd2b4a084b90b5e7b630e1f423061a9b9b761, 3.19—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/b26849cffaa7c43355b82e9bef3725e786973a1a
git.kernel.orghttps://git.kernel.org/stable/c/acf04e2863132f6d9222f71f3a76fb9782cbe061
git.kernel.orghttps://git.kernel.org/stable/c/4e9d723d9f198b86f6882a84c501ba1f39e8d055
git.kernel.orghttps://git.kernel.org/stable/c/2c77ae315f3ce9d2c8e1609be74c9358c1fe4e07
git.kernel.orghttps://git.kernel.org/stable/c/754bd2b4a084b90b5e7b630e1f423061a9b9b761

07 Fixed in

Debian 12

linux
No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.94-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.19.11-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.