CVE-2023-54121

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.5% 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

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

Red Hat severity

Low. 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

2025-12-24 13:06Z8 MO AGO

Last updated

2026-08-05 09:17Z1 MO AGO

Reserved

2025-12-24

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-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

cf612d4ec0ef323a93ecdaa241d517e77377b262986d45fa2745793a58b3bc78

• git.kernel.orghttps://git.kernel.org/stable/c/9f68e2105dd96cf0fafffffafb2337fbd0fbae1f
• git.kernel.orghttps://git.kernel.org/stable/c/b43a4c99d878cf5e59040e45c96bb0a8358bfb3b
• git.kernel.orghttps://git.kernel.org/stable/c/c962098ca4af146f2625ed64399926a098752c9c