CVE-2026-64403

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

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 18.4% of scored records. A rank, not a probability.

NVD base score

7.1 (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:L/I:N/A:H

NVD analysis status

Awaiting Analysis. 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 08:50Z1 MO AGO

Last updated

2026-08-17 04:55Z18 DAYS AGO

Reserved

2026-07-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

2597befeb3cadf6a106c05df4d24cf9e95d60115af73bafa482691f918a24aee

• git.kernel.orghttps://git.kernel.org/stable/c/cca81b4bc672604a84f6d224a55cc77ec7dee619
• git.kernel.orghttps://git.kernel.org/stable/c/f70d4aa88068096f35d73e3a05eff33c0a16b9cd
• git.kernel.orghttps://git.kernel.org/stable/c/7d871e969b941ce25653f7716203a0ea4d07ad4b
• git.kernel.orghttps://git.kernel.org/stable/c/98d93c226bdfaa79bbdd86981921d7f106374225
• git.kernel.orghttps://git.kernel.org/stable/c/996d3da39899aceb8f4910911a3f19a45a7d9d1b
• git.kernel.orghttps://git.kernel.org/stable/c/73abbaf91aa33da87c008fb62c148ade561bb606
• git.kernel.orghttps://git.kernel.org/stable/c/6b47bdaacfd0045687880177e0987055d8f4765a
• git.kernel.orghttps://git.kernel.org/stable/c/687617555cedfb74c9e3cb85d759b908dcb17856