CVE-2026-64217

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 3.0% 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 2026-08-11.

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

2026-07-24 15:23Z1 MO AGO

Last updated

2026-08-05 12:40Z1 MO 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

e64c0332959a0ddf772b6388e3f7e4e95db1f2d065dc9239981f42832eafc02b

• git.kernel.orghttps://git.kernel.org/stable/c/00efe58bbdcc93272d579ca24bfc912563f4a204
• git.kernel.orghttps://git.kernel.org/stable/c/96cc3beb2390ba9f9c128c5733c0ccfe450dd4f9
• git.kernel.orghttps://git.kernel.org/stable/c/afeb32d9bf9aaeea51d0f723a19f14afb73bd94d
• git.kernel.orghttps://git.kernel.org/stable/c/f48b9157f0f611fa436c360648603d5ded719b12
• git.kernel.orghttps://git.kernel.org/stable/c/0ef37eef83fad3542ee06db2940433ae1a92b39d