CVE-2023-53996

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

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/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

2025-12-24 10:55Z10 MO AGO

Last updated

2026-08-05 09:16Z2 MO AGO

Reserved

2025-12-24

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

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

Weaknesses

• CWE-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

83ccb4d7e6d646dc6adad422af1699154532228a98945f6e709fb1cfd3c2505a

• git.kernel.orghttps://git.kernel.org/stable/c/ba50e7773a99a109a1ea6f753b766a080d3b21cc
• git.kernel.orghttps://git.kernel.org/stable/c/6615212d8e131b45bd9705b0d69cc0d2f624666f
• git.kernel.orghttps://git.kernel.org/stable/c/8ae7457e71a320867d868f2622d7c643596e4f43
• git.kernel.orghttps://git.kernel.org/stable/c/ac3f9c9f1b37edaa7d1a9b908bc79d843955a1a2