CVE-2023-53503

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 5.0% 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

Analyzed. NVD last modified this record on 2026-06-17.

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 11:45Z11 MO AGO

Last updated

2026-05-11 19:46Z3 MO AGO

Reserved

2025-10-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase
• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

eae7be46a080fc4a3b280686c3ce8141c8899cdb115aace6c96568c9ada7e3aa

• git.kernel.orghttps://git.kernel.org/stable/c/100c0ad6c04597fefeaaba2bb1827cc015d95067
• git.kernel.orghttps://git.kernel.org/stable/c/620a3c28221bb219b81bc0bffd065cc187494302
• git.kernel.orghttps://git.kernel.org/stable/c/b4319e457d6e3fb33e443efeaf4634fc36e8a9ed
• git.kernel.orghttps://git.kernel.org/stable/c/31668cebf45adfb6283e465e641c4f5a21b07afa
• git.kernel.orghttps://git.kernel.org/stable/c/5354b2af34064a4579be8bc0e2f15a7b70f14b5f