CVE-2026-53398

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

0.54% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Analyzed. 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

2026-07-19 12:01Z1 MO AGO

Last updated

2026-08-17 04:50Z18 DAYS AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.2

Document digest

3fbf3a1c44296eba173d8cf7c2c029230dfb044702bb42844dc3c0c151c73355

• git.kernel.orghttps://git.kernel.org/stable/c/8836405abdc53ca3dd5fc68b2cf6f8f012fad011
• git.kernel.orghttps://git.kernel.org/stable/c/49de5d31dd8fdebf78bdeaf196b0ca5cd5c75439
• git.kernel.orghttps://git.kernel.org/stable/c/5ec37edcb534f3fc92304be236d37f08e6545585
• git.kernel.orghttps://git.kernel.org/stable/c/1e04be34cafae119e82bcaccd6d28a20f72a3647
• git.kernel.orghttps://git.kernel.org/stable/c/161d1aaeb04d620d3692639700512bb5038c1e10
• git.kernel.orghttps://git.kernel.org/stable/c/c8a24effd96d4779e2ad779654682304491c55a5
• git.kernel.orghttps://git.kernel.org/stable/c/46eb17d45be69d28c7a23ea03283b207426a8232
• git.kernel.orghttps://git.kernel.org/stable/c/9e18e83b8846a5c3fe13fc8a464b4865d33996c6