CVE-2023-54203

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

0.53% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 42.9% of scored records. A rank, not a probability.

NVD base score

9.1 (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:N/A:H

NVD analysis status

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

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

2025-12-30 12:09Z8 MO AGO

Last updated

2026-08-05 09:18Z1 MO AGO

Reserved

2025-12-30

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

36915905392275ceb3e3052333c13339108fc8120877cb7efc766a123c364168

• git.kernel.orghttps://git.kernel.org/stable/c/921536046bd165efeb07beef5630aff35cd6a489
• git.kernel.orghttps://git.kernel.org/stable/c/a8334a0c535d0f0b4d64926c8fe0922ed98f7d43
• git.kernel.orghttps://git.kernel.org/stable/c/99a51c673b1d2d0b5a972353401b77612d9cc713
• git.kernel.orghttps://git.kernel.org/stable/c/dc8289f912387c3bcfbc5d2db29c8947fa207c11