CVE-2026-64443

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 20.3% of scored records. A rank, not a probability.

NVD base score

8.1 (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:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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 8.1)

CNA CVSS vector

CVSS:3.1/AV:A/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

e9e1d395966df98af3019b99c9728ad3e3ad902178152ac076fad6d51542e284

• git.kernel.orghttps://git.kernel.org/stable/c/5e8db4cff5b45c7c4edc8ae3f302027c3bb32b25
• git.kernel.orghttps://git.kernel.org/stable/c/6dd5e8c3011ebabf417257d7f07901a7c4311539
• git.kernel.orghttps://git.kernel.org/stable/c/9193c34f75fd9e1ea8a590d7cced464c3380dc29
• git.kernel.orghttps://git.kernel.org/stable/c/bd953d52d587d42365e399b96c52dbdb13032070
• git.kernel.orghttps://git.kernel.org/stable/c/69f174a0673b6b7a29b851adb60bc450cdc0ecc4
• git.kernel.orghttps://git.kernel.org/stable/c/b5cc2f999927f69723ca53f1f2a3aa37dbeda907
• git.kernel.orghttps://git.kernel.org/stable/c/ed51de4a86e173c3b0ef78e039c2e49e08b11f16