CVE-2026-23427

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

0.29% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 21.3% 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 2026-06-17.

Red Hat severity

Important. 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

2026-04-03 15:15Z6 MO AGO

Last updated

2026-08-05 12:21Z2 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

62301d372e9d0ef076a4ffea2cc3a4bb193bba0aaabe992e920fc6acd87c7081

• git.kernel.orghttps://git.kernel.org/stable/c/b0158d9d6f4ec5941e49a0b812735db2844f9975
• git.kernel.orghttps://git.kernel.org/stable/c/568a25fd7bcdfb2790f7d42aa2a440dca4435c96
• git.kernel.orghttps://git.kernel.org/stable/c/a5828c14a9e3d5eeed0bcc0a58f0f3fbca0cdcb2
• git.kernel.orghttps://git.kernel.org/stable/c/9b0792c3eacf01e67f356d6ef9707b0ae5022419
• git.kernel.orghttps://git.kernel.org/stable/c/b425e4d0eb321a1116ddbf39636333181675d8f4