CVE-2026-23447

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.9% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-24.

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

2026-04-03 15:15Z5 MO AGO

Last updated

2026-05-23 16:04Z3 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-129Improper Validation of Array IndexVariant
• CWE-131Incorrect Calculation of Buffer SizeBase

Data version

5.2

Document digest

deb1e7d77596625c18965258e28c923304d504395f55ad9de2a973be62869be7

• git.kernel.orghttps://git.kernel.org/stable/c/125f932a76a97904ef8a555f1dd53e5d0e288c54
• git.kernel.orghttps://git.kernel.org/stable/c/af0d1613d6751489dbf9f69aac1123f0b1e566e5
• git.kernel.orghttps://git.kernel.org/stable/c/a5bd5a2710310c965ea4153cba4210988a3454e2
• git.kernel.orghttps://git.kernel.org/stable/c/de70da1fb1d152e981ecb3157f7ec2b633005c16
• git.kernel.orghttps://git.kernel.org/stable/c/77914255155e68a20aa41175edeecf8121dac391