CVE-2026-43126

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 2.9% 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

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

2026-05-06 11:27Z4 MO AGO

Last updated

2026-08-05 12:26Z1 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

09e9706f07dec1dbbd0319b9b8840f6fcb4e541131d15dc1569ddc480d98357a

• git.kernel.orghttps://git.kernel.org/stable/c/ae583f113d15fa97e5234133c20d09f8e6214e47
• git.kernel.orghttps://git.kernel.org/stable/c/e6645e625480cdf1079a4265f758d13b70721029
• git.kernel.orghttps://git.kernel.org/stable/c/8c097cf736993454acf3f711a3b376d6c7ad8965
• git.kernel.orghttps://git.kernel.org/stable/c/084d5d44418148662365eced3e126ad1a81ee3e2