CVE-2026-64450

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

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 08:51Z1 MO AGO

Last updated

2026-08-17 04:55Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

504f2ba679da63efebe5f972b09d007ce534428f928121d64b4269257ba29f11

• git.kernel.orghttps://git.kernel.org/stable/c/055663d21dc4336f67933ab26bef3c5934be6324
• git.kernel.orghttps://git.kernel.org/stable/c/016f5995c37a5a2c45198308f830f244517d70b7
• git.kernel.orghttps://git.kernel.org/stable/c/74b45af86a767594ba52330cd440ea84e24d700d
• git.kernel.orghttps://git.kernel.org/stable/c/9a51115fcdc78687c8852bf93a1db3951dbb223b
• git.kernel.orghttps://git.kernel.org/stable/c/a21ed5064217cc33726da6c7ef1a520eba43aea1
• git.kernel.orghttps://git.kernel.org/stable/c/2de42e268174766cb2e2b90721afdfdff70e0d8d
• git.kernel.orghttps://git.kernel.org/stable/c/f333b6851bdf326fd2134133272dbbed0c94d921
• git.kernel.orghttps://git.kernel.org/stable/c/2b66974a1b6134a4bbc3bfed181f7418f688eb54