CVE-2026-31473

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.7% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Analyzed. 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 13:54Z4 MO AGO

Last updated

2026-08-05 12:22Z29 DAYS AGO

Reserved

2026-03-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

b5f163b1ebef17cfc2b33f364bdd72d0bab831651de0f64e4cea025325eb5351

• git.kernel.orghttps://git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5
• git.kernel.orghttps://git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0
• git.kernel.orghttps://git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5
• git.kernel.orghttps://git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01
• git.kernel.orghttps://git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56
• git.kernel.orghttps://git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112d
• git.kernel.orghttps://git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1
• git.kernel.orghttps://git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773