CVE-2026-53021

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 2.4% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-07-15.

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

2026-06-24 16:29Z2 MO AGO

Last updated

2026-06-24 16:29Z2 MO AGO

Reserved

2026-06-09

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-190Integer Overflow or WraparoundBase

Data version

5.2

Document digest

fb8b792c3d6233e61505faeb0347c1b558db934c0c428a82ab41c067d38886e2

• git.kernel.orghttps://git.kernel.org/stable/c/c08ab702c4699c6efb9d60bdb15b73e7a627ee7e
• git.kernel.orghttps://git.kernel.org/stable/c/2e1ed9a7b6ea5bfefb5d80a02b1c71c7dee1f0dd
• git.kernel.orghttps://git.kernel.org/stable/c/5efc3ef4758f8d98c257419fa21daca3227de61a
• git.kernel.orghttps://git.kernel.org/stable/c/d7aef29573c7c5cdb2dfad939253287a6329c2a4
• git.kernel.orghttps://git.kernel.org/stable/c/3facdecc3fcf115cc4f9b3d8f118d6705e2456a8
• git.kernel.orghttps://git.kernel.org/stable/c/51075df70c46e60a9773f2dcd28299e40dac36fb
• git.kernel.orghttps://git.kernel.org/stable/c/02115986d027ade793e7f6be87e91d6a796d0aa3
• git.kernel.orghttps://git.kernel.org/stable/c/2bf2d65f76697820dbc4227d13866293576dd90a