CVE-2026-23421

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

Ranks above 1.7% 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 2026-07-24.

Red Hat severity

Low. 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

2026-04-03 13:24Z5 MO AGO

Last updated

2026-05-11 22:06Z3 MO AGO

Reserved

2026-01-13

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-772Missing Release of Resource after Effective LifetimeBase

Data version

5.2

Document digest

d3b85c47d5508cbb48f473d271f4b02e14c60d00bad640971c3df155454dbb86

• git.kernel.orghttps://git.kernel.org/stable/c/7f971dfd48983074adc7bbcea3ee95ce7aad47cb
• git.kernel.orghttps://git.kernel.org/stable/c/3557359ea3df32430ea7c30f7a708ca9a91d7e0e
• git.kernel.orghttps://git.kernel.org/stable/c/e377182f0266f46f02d01838e6bde67b9dac0d66