CVE-2026-64456

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

0.15% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 4.5% of scored records. A rank, not a probability.

NVD base score

7.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Received. NVD last modified this record on 2026-08-17.

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

2026-07-25 08:51Z1 MO AGO

Last updated

2026-08-17 04:56Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.7)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

053d835c5553148ee10349fc7739e62a7737ea8e1bc1df018843c0543479195a

• git.kernel.orghttps://git.kernel.org/stable/c/3aa3e89cf80721c8d382b4c1a2b70a0449dad4a5
• git.kernel.orghttps://git.kernel.org/stable/c/63335e7b638ae70028ae285bb95153874a8bc852
• git.kernel.orghttps://git.kernel.org/stable/c/2e788948ff2a13358a303af112497a63201c5739
• git.kernel.orghttps://git.kernel.org/stable/c/fde19b0d4eeabae042519313c843fe6f27d41e9d
• git.kernel.orghttps://git.kernel.org/stable/c/81dd21b5f0c299cc7b5bf84f04a61938559d20e6
• git.kernel.orghttps://git.kernel.org/stable/c/285e17c44e3873a73460f294acbd64018ff64385
• git.kernel.orghttps://git.kernel.org/stable/c/92d5736a62040ec1cfff23ea57e6599301690ad5
• git.kernel.orghttps://git.kernel.org/stable/c/e3046eeada299f917a8ad883af4434bfb86556b1