CVE-2026-31663

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.3% 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

Modified. NVD last modified this record on 2026-08-20.

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

2026-04-24 14:45Z4 MO AGO

Last updated

2026-08-21 12:12Z14 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

No CWE assigned

Data version

5.2

Document digest

5c24b163f49b1a0f68311799436900c4a7dbc22295b231946269a029ed0a921e

• git.kernel.orghttps://git.kernel.org/stable/c/4236c30b437b80f673b9e08c8fae38b8d471ac9e
• git.kernel.orghttps://git.kernel.org/stable/c/0f451b43c88bf2b9c038b414be580efee42e031b
• git.kernel.orghttps://git.kernel.org/stable/c/5002beda5cac69d522dc54da0d5d463ed9c963d2
• git.kernel.orghttps://git.kernel.org/stable/c/1c428b03840094410c5fb6a5db30640486bbbfcb
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-31663vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2461462https://bugzilla.redhat.com/show_bug.cgi?id=2461462issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31663.jsonx_sadp-csaf-vex