CVE-2026-31456

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

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

EPSS percentile

Ranks above 0.5% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. 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.

Published

2026-04-22 13:53Z4 MO AGO

Last updated

2026-06-17 13:44Z2 MO AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
• CWE-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

3c6f5a13b101feffbc2ab9daa21a7f50af05c460434afca43ef58fb21218634d

• git.kernel.orghttps://git.kernel.org/stable/c/138ada1337b47cc5efb08e517674d46f86268274
• git.kernel.orghttps://git.kernel.org/stable/c/38ec58670a0c5fc1edabdeccd857e586b7b3f318
• git.kernel.orghttps://git.kernel.org/stable/c/9bbbebd94dd5be25ec8c899d46ef01b33d5d22c0
• git.kernel.orghttps://git.kernel.org/stable/c/3b89863c3fa482912911cd65a12a3aeef662c250