CVE-2026-64046

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

0.51% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 41.6% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-09-02.

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

2026-07-19 15:39Z1 MO AGO

Last updated

2026-08-05 12:38Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-237Improper Handling of Structural ElementsBase

Data version

5.2

Document digest

d7664fda402684c9abdd7655f9b80e6dc9229753291b4e90f9070ca4409e62b1

• git.kernel.orghttps://git.kernel.org/stable/c/49a5faaa471ddcd37b6893970c9916eb836e7c31
• git.kernel.orghttps://git.kernel.org/stable/c/91359966e247c0244c66d50bbb8e74aefa4321c3
• git.kernel.orghttps://git.kernel.org/stable/c/410351158dfef2d67fea6603680b3a6013c6ed9d
• git.kernel.orghttps://git.kernel.org/stable/c/acdc12b71c9aa4be5dcd2c8062753c6d2033e235
• git.kernel.orghttps://git.kernel.org/stable/c/929b1548e63ac72e104c07d8ee8cbbeeba2fa89a
• git.kernel.orghttps://git.kernel.org/stable/c/af855f4c966afafef74faf8390c7b86568c0d46d
• git.kernel.orghttps://git.kernel.org/stable/c/b9c015ef1a7bf1e8dc67f21c6381f36deb2c3a36
• git.kernel.orghttps://git.kernel.org/stable/c/ff26a0e8377dec07e4a7230db7675bed1b9a6d03