CVE-2026-43379

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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 36.8% of scored records. A rank, not a probability.

NVD base score

9.8 (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: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

2026-08-05 12:27Z1 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

7dd4b6087443df37de602f4ab70fd7ed2cf4bb4b2a76d1d48ab9acb3ef21c109

• git.kernel.orghttps://git.kernel.org/stable/c/bf4d66d72e4a9e268c1012c331ce9eaedb5e2086
• git.kernel.orghttps://git.kernel.org/stable/c/960699317d39f46611f4ebeb69edc567c1f4e6b6
• git.kernel.orghttps://git.kernel.org/stable/c/dbbd328cf58261ca239756fe1c0d10c9518d3399
• git.kernel.orghttps://git.kernel.org/stable/c/b3568347c51c46e2cabc356bc34676df98296619
• git.kernel.orghttps://git.kernel.org/stable/c/eac3361e3d5dd8067b3258c69615888eb45e9f25