CVE-2026-64554

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 16.7% 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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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

2026-07-27 20:10Z1 MO AGO

Last updated

2026-08-17 04:57Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

0f3cdc398ba8ec61c7a1f816331cf49739d0caf68f95cf0905301fa2c8be5bf3

• git.kernel.orghttps://git.kernel.org/stable/c/8c10778ec674b67a07ea042fcba64270f3f38a5a
• git.kernel.orghttps://git.kernel.org/stable/c/2731efa6364e47934c96eb69e01ea131e8af8030
• git.kernel.orghttps://git.kernel.org/stable/c/00c06ef8c018493943891a7d0ca82b71b24f3180
• git.kernel.orghttps://git.kernel.org/stable/c/c141f69d0a0fb16964dbc293650047e69bda8af7
• git.kernel.orghttps://git.kernel.org/stable/c/f2e6596d10783557aeb9668da2a3b4d19deb2001
• git.kernel.orghttps://git.kernel.org/stable/c/1c4f67c89fd27c4df4c70b135c2c59627698b3c0
• git.kernel.orghttps://git.kernel.org/stable/c/4ac981a8b7ce7aec99a52d08f8a8953e8e120067
• git.kernel.orghttps://git.kernel.org/stable/c/86f3ce81dd2b4b0aa2c3016c989a943e4b1b643d