CVE-2026-43084

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 2.6% 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 07:40Z4 MO AGO

Last updated

2026-08-05 12:25Z1 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-416Use After FreeVariant
• CWE-364Signal Handler Race ConditionBase

Data version

5.2

Document digest

8b956b36f25108035e0f8894ac0da80c915ae5f7c45da03962db24605af02be4

• git.kernel.orghttps://git.kernel.org/stable/c/22730cb96093b5be0609063bbb1923dbecd61252
• git.kernel.orghttps://git.kernel.org/stable/c/41e3652a178cb0eecd48e0e6e27fbb73a004046a
• git.kernel.orghttps://git.kernel.org/stable/c/9e5ebef91120d2764aefe557c3a484b6288f341f
• git.kernel.orghttps://git.kernel.org/stable/c/936206e3f6ff411581e615e930263d6f8b78df9d