CVE-2026-64304

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

0.17% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 6.3% 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 2026-09-03.

Red Hat severity

Important. 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 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

1acdebec88926f97f3bdcb089e3b15776ae5a8f49afc7bbdc9e69309999d09db

• git.kernel.orghttps://git.kernel.org/stable/c/6d99c5fadd2df488103f64d6475b63ba6852202b
• git.kernel.orghttps://git.kernel.org/stable/c/c34369473bfe92a0b46ec78d6358e30341c7f481
• git.kernel.orghttps://git.kernel.org/stable/c/1002719d13072a5e4be1e993aa61dffb4a604e82
• git.kernel.orghttps://git.kernel.org/stable/c/500319830d76911c120dc0b9605f8c16d7702844
• git.kernel.orghttps://git.kernel.org/stable/c/3d61a214fdcda41f1ebfabbb483404032a7b4d91
• git.kernel.orghttps://git.kernel.org/stable/c/6fb62b767f3e27661e8f8d2f7b85f4e098fcdb1a
• git.kernel.orghttps://git.kernel.org/stable/c/ce42224487c504aee4b7ff3a7342e7b4d7e28cc9
• git.kernel.orghttps://git.kernel.org/stable/c/b3ac78756588059729b9195fcc9f4b37d54057a5