CVE-2026-53191

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 7.0% 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

Analyzed. NVD last modified this record on 2026-07-06.

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

2026-06-25 08:39Z2 MO AGO

Last updated

2026-08-05 12:33Z1 MO AGO

Reserved

2026-06-09

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

• CWE-1285Improper Validation of Specified Index, Position, or Offset in InputBase

Data version

5.2

Document digest

09c8168d788798296fc438c4da4d63a7b846c2903293932b895d9e3b3fbb8018

• git.kernel.orghttps://git.kernel.org/stable/c/f40570fda3f3a1f96aeaa4aef665ba274b2810b5
• git.kernel.orghttps://git.kernel.org/stable/c/0bbc9481f970b0b4ddb08cfa464db1cc93b74b56
• git.kernel.orghttps://git.kernel.org/stable/c/4973232a67e4137ab9399f504f7f2bdd847f96d2
• git.kernel.orghttps://git.kernel.org/stable/c/ed46f39c47eb5530a9c161481a2080d3a869cfaf