CVE-2026-64422

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 3.2% of scored records. A rank, not a probability.

NVD base score

7.1 (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:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-04.

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

2026-07-25 08:51Z1 MO AGO

Last updated

2026-08-17 04:55Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

d17a1bbb758868dc62962085daf2b8515ee5ede1fc4f0a132183d2c64be3c94b

• git.kernel.orghttps://git.kernel.org/stable/c/f0d88a4cd03affff6c08adf6c63964e235aede43
• git.kernel.orghttps://git.kernel.org/stable/c/27ddf4486c7dbf5bdd393fa8bef6b67179796d98
• git.kernel.orghttps://git.kernel.org/stable/c/782708ca1ea1f68b8cbb5ea3a7f5f18d0000efae
• git.kernel.orghttps://git.kernel.org/stable/c/e81f805824a8109504fce090641b17d135b48cd1
• git.kernel.orghttps://git.kernel.org/stable/c/99206ce2244f8a3ed64298d0667c9055845a5dc7
• git.kernel.orghttps://git.kernel.org/stable/c/bbae351c0f32f7c200249e4aa6561b2b419dcf69
• git.kernel.orghttps://git.kernel.org/stable/c/a094ac95d3b69adfa1676eb9c8eae6835d4f1671
• git.kernel.orghttps://git.kernel.org/stable/c/efb8763d7bbb40cff4cc55a6b62c3095a038149c