CVE-2026-64009

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.0% 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

Awaiting Analysis. NVD last modified this record on 2026-07-30.

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

2026-07-19 14:56Z1 MO AGO

Last updated

2026-08-05 12:38Z1 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

c9f29827adacc7c27be370e4c7b21f0e60b53882c068c14ee682c00f3aa26f05

• git.kernel.orghttps://git.kernel.org/stable/c/8014f70c4e6e5ab101ae3860a614e65e988372e3
• git.kernel.orghttps://git.kernel.org/stable/c/1021d2877b689a648b27815c854557a917122e93
• git.kernel.orghttps://git.kernel.org/stable/c/2a41b1b31c61c52b972278ce1732a1443f5e89ed
• git.kernel.orghttps://git.kernel.org/stable/c/fccd685b32df5aaf6bad4381eeda216468e283f0
• git.kernel.orghttps://git.kernel.org/stable/c/820e501be8aee4b365d218d83227b314309c5fda
• git.kernel.orghttps://git.kernel.org/stable/c/82ac903e0b519849647657b8c48d21237ada06a2
• git.kernel.orghttps://git.kernel.org/stable/c/3db50ceeacb52806d8fe86fb1dfe944df0b9f789
• git.kernel.orghttps://git.kernel.org/stable/c/742b04d0550b0ec89dcbc99537ec88653bd1ad90