CVE-2023-53630

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 7.0% 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

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

2025-10-07 15:19Z11 MO AGO

Last updated

2026-08-05 09:15Z1 MO AGO

Reserved

2025-10-07

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

76578e9d5f228ea651aaaa4d54532fce763fbc9e1d6c86ce33d8899bde346eb5

• git.kernel.orghttps://git.kernel.org/stable/c/70726ce4d898db57bfc4ae30ecd7da63b0dd0aa4
• git.kernel.orghttps://git.kernel.org/stable/c/727c28c1cef2bc013d2c8bb6c50e410a3882a04e