CVE-2026-53391

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

0.52% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 42.0% of scored records. A rank, not a probability.

NVD base score

7.5 (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:N/I:N/A:H

NVD analysis status

Analyzed. 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

2026-07-19 12:01Z1 MO AGO

Last updated

2026-08-17 04:50Z18 DAYS AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

b3b7dd4d8388bdf67dce0c60bd0a976c87d78fbe400b9c71be8c6147f8d71296

• git.kernel.orghttps://git.kernel.org/stable/c/76b94cbd32aacf36a641956385a852635c6802b9
• git.kernel.orghttps://git.kernel.org/stable/c/c8e4e0c701d0192a2efb6df059c0f9e19678c23d
• git.kernel.orghttps://git.kernel.org/stable/c/6c344fff2feff9d4d716d8e4ad40e9b5040ee5ea
• git.kernel.orghttps://git.kernel.org/stable/c/427ab81a811dab4bca9d19f82eec5847ae42646e
• git.kernel.orghttps://git.kernel.org/stable/c/012d37a568bfbb2c9686f03ade75560bc7139956
• git.kernel.orghttps://git.kernel.org/stable/c/30aae62e50b4e074a90a9a5e15246548fbdc1182
• git.kernel.orghttps://git.kernel.org/stable/c/41fe0f7b84f0cb822ae10ab08592996a592b2a25