CVE-2023-53531

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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.6% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Modified. 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

2025-10-01 11:46Z11 MO AGO

Last updated

2026-08-05 09:14Z1 MO AGO

Reserved

2025-10-01

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-476NULL Pointer DereferenceBase
• CWE-366Race Condition within a ThreadBase

Data version

5.2

Document digest

3ec6397897eb9461ac5764fee295dc99300cf3d1f5ea8f462dde1e73a5fb3059

• git.kernel.orghttps://git.kernel.org/stable/c/a0b4a0666beacfe8add9c71d8922475541dbae73
• git.kernel.orghttps://git.kernel.org/stable/c/a7cb2e709f2927cc3c76781df3e45de2381b3b9d
• git.kernel.orghttps://git.kernel.org/stable/c/5a26e45edb4690d58406178b5a9ea4c6dcf2c105