CVE-2026-64313

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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.1% of scored records. A rank, not a probability.

NVD base score

8.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-03.

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 08:49Z1 MO AGO

Last updated

2026-08-17 04:53Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

e1ab62247a2afca101e2be43ed976f73ecb64699fb19eab287ccdc9eb7004343

• git.kernel.orghttps://git.kernel.org/stable/c/d11b2bb99bec1f5557c01cac42231e23745f49b8
• git.kernel.orghttps://git.kernel.org/stable/c/b709e0e768766abe29a49e1c1922a1604be602f4
• git.kernel.orghttps://git.kernel.org/stable/c/24a54dfa06d09813b4802a374fad3d2c0e16a884
• git.kernel.orghttps://git.kernel.org/stable/c/677450e5ef850c4d28b7956aa01104548c2a894e
• git.kernel.orghttps://git.kernel.org/stable/c/5275e0fca256d081e2e7d4ba3dd8216c6e50d44e
• git.kernel.orghttps://git.kernel.org/stable/c/774ddddf5eb26eeca177350413e3e2bc50930ee9
• git.kernel.orghttps://git.kernel.org/stable/c/ebaae7c4251cc0cdb2602f334d4f08a3e82d271e
• git.kernel.orghttps://git.kernel.org/stable/c/27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406