CVE-2026-64109

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 2.8% of scored records. A rank, not a probability.

NVD base score

8.8 (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:C/C:H/I:H/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-08-12.

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 15:40Z1 MO AGO

Last updated

2026-08-05 12:39Z1 MO AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-366Race Condition within a ThreadBase

Data version

5.2

Document digest

595e7ec071dc4ef6d843adc4e6dd767862a975d2c6d3f1220fb9d4568d64823a

• git.kernel.orghttps://git.kernel.org/stable/c/26342087fac93b3932e6af61dc91ec029cb8a623
• git.kernel.orghttps://git.kernel.org/stable/c/38bccb927d83d7d52e5b20015a172a0b6101d11e
• git.kernel.orghttps://git.kernel.org/stable/c/acdff9907478e82208475b1151700d0b71dcdc63
• git.kernel.orghttps://git.kernel.org/stable/c/5f162f95a95834f06a8ec6140889272ad12e842f
• git.kernel.orghttps://git.kernel.org/stable/c/be309f8eae8b474a4a617eaae01324da996fc719