CVE-2026-43056

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.9% 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

2026-05-01 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 7.8)

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-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

5e538684c6ab44559c099ef8b0795f0e208a20ec4d67aac20b83d72e653bf999

• git.kernel.orghttps://git.kernel.org/stable/c/d88541ffd56d62a61e77209080001eddd4d69815
• git.kernel.orghttps://git.kernel.org/stable/c/43f5b19fd190fea20d052bc84741b28031d5baa9
• git.kernel.orghttps://git.kernel.org/stable/c/5f4061f8225d18695e5afe9bbf1cb7bd673d7872
• git.kernel.orghttps://git.kernel.org/stable/c/e5a75bf026c686b91a7dc6f9c5caf5016745d1fe
• git.kernel.orghttps://git.kernel.org/stable/c/c4ea7d8907cf72b259bf70bd8c2e791e1c4ff70f