CVE-2026-43253

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

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 26.9% 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 2026-06-17.

Red Hat severity

Low. 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

2026-05-06 11:28Z4 MO AGO

Last updated

2026-08-05 12:26Z1 MO AGO

Reserved

2026-05-01

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-667Improper LockingClass
• CWE-413Improper Resource LockingBase

Data version

5.2

Document digest

c921f9bfaa0a776adeb2525dc54ef83c31a9dbff3e315a1bf02d989b1ee849f3

• git.kernel.orghttps://git.kernel.org/stable/c/f2f65b28d802a667119147444ec2ae33eebf9a58
• git.kernel.orghttps://git.kernel.org/stable/c/715c263119fd1b918a9fcbd8a36ea5b604a46324
• git.kernel.orghttps://git.kernel.org/stable/c/e15768e68820142077bbca402d8e902f64ade1b0
• git.kernel.orghttps://git.kernel.org/stable/c/496269d12072ecb219826485bdbec70c92a8eef5
• git.kernel.orghttps://git.kernel.org/stable/c/d2a0cac10597068567d336e85fa3cbdbe8ca62bf