CVE-2026-64558

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.1% 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

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

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

2026-07-29 16:31Z1 MO AGO

Last updated

2026-08-17 04:57Z18 DAYS 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

No CWE assigned

Data version

5.2

Document digest

01748531691aa3756fcf0d9e02775642cfdb72e42f322c427c8058548f3f0929

• git.kernel.orghttps://git.kernel.org/stable/c/02028a24e26d85262ab9c8fc4344e1f3503007fc
• git.kernel.orghttps://git.kernel.org/stable/c/433e5e70cdc1edf382d28d08a885b22e2b98b7da
• git.kernel.orghttps://git.kernel.org/stable/c/614aa0491c7a190556c2345dddee0b6f5ed90989
• git.kernel.orghttps://git.kernel.org/stable/c/1ac287e2af9a9112fe271427ef45eceb26bce8b4