CVE-2026-43426

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 2.7% 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 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2026-05-08 14:21Z3 MO AGO

Last updated

2026-05-11 22:24Z3 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

c693069684406eca0dec3f41c943485485ef43415a0056bd08c756af6b8d436c

• git.kernel.orghttps://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f
• git.kernel.orghttps://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7
• git.kernel.orghttps://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84
• git.kernel.orghttps://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69
• git.kernel.orghttps://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0
• git.kernel.orghttps://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae
• git.kernel.orghttps://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580
• git.kernel.orghttps://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412