CVE-2023-53803

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:A/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

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

2025-12-09 00:00Z8 MO AGO

Last updated

2026-08-05 09:16Z1 MO AGO

Reserved

2025-12-08

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

CVSS:3.1/AV:A/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

3faf0ddc8d30c22fccf00f645032cacb6ab3ee1bbbe99b83f5b4b724cfcce9fb

• git.kernel.orghttps://git.kernel.org/stable/c/da1a955c48a16e16e925d6544793914e52a6fa51
• git.kernel.orghttps://git.kernel.org/stable/c/9e5c7d52085b8c84bc82a261580f0eb170039325
• git.kernel.orghttps://git.kernel.org/stable/c/467afb1dd630d8c6d172bd6cacc125199b5f4f2d
• git.kernel.orghttps://git.kernel.org/stable/c/e4dd25da784b2e07dbfbf04509afa4c5a1375227
• git.kernel.orghttps://git.kernel.org/stable/c/2b28a7d261cb309912596d6a2d383ca370483527
• git.kernel.orghttps://git.kernel.org/stable/c/0dfe68394cbe1d4fe579fb325ecc813c50528c5a
• git.kernel.orghttps://git.kernel.org/stable/c/799e8dd2022d2e13f0c5c1906b40ceca07a23349
• git.kernel.orghttps://git.kernel.org/stable/c/9b4f5028e493cb353a5c8f5c45073eeea0303abd