CVE-2026-64227

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.4% 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 2026-08-13.

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

2026-07-24 15:23Z1 MO AGO

Last updated

2026-07-27 04:37Z1 MO AGO

Reserved

2026-07-19

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

Data version

5.2

Document digest

d626328bd34aaf5f6b92d8e4a1ece469d60e538cc318b4dadb3736799153bad3

• git.kernel.orghttps://git.kernel.org/stable/c/a9451bf561232314755baf69a5916e0ac77f33fc
• git.kernel.orghttps://git.kernel.org/stable/c/34f4d0e4e5065237d15651df759a99e81b7f9f51
• git.kernel.orghttps://git.kernel.org/stable/c/612ddab8fce04394bd7aebe8e0f2599642e30859
• git.kernel.orghttps://git.kernel.org/stable/c/e4865a56d013e86e46ea6acea15bb6eae01898ff