CVE-2026-43031

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

0.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 35.4% 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

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

2026-05-01 14:15Z4 MO AGO

Last updated

2026-08-05 12:25Z1 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

6b6e91a4d03e8946d6835e00aba0cd5f1daed98ea1a4ea2e2aa960cf7fcb0051

• git.kernel.orghttps://git.kernel.org/stable/c/2a0323a913109b52bfc9f5ea7b92a1b249e07d3e
• git.kernel.orghttps://git.kernel.org/stable/c/3c3a6b9020c01fde7b22e8550105de0b59904f61
• git.kernel.orghttps://git.kernel.org/stable/c/d1978d03e86785872871bff9c2623174b10740de