CVE-2023-54258

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

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-08-04.

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

2025-12-30 12:15Z8 MO AGO

Last updated

2026-08-05 09:18Z1 MO AGO

Reserved

2025-12-30

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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

5a80bc1a6d12414c3b2a7a5b00cd6b036756892b919c1770f8e67c424a8019cc

• git.kernel.orghttps://git.kernel.org/stable/c/b99f490ea87ebcca3a429fd8837067feb56a4c7c
• git.kernel.orghttps://git.kernel.org/stable/c/5ee28bcfbaacf289eb25c662a2862542ea6ce6a7
• git.kernel.orghttps://git.kernel.org/stable/c/6b67a6d2e50634fe127e656147c81915955e9f5e
• git.kernel.orghttps://git.kernel.org/stable/c/e8f5f849ffce24490eb9449e98312b66c0dba76f