CVE-2026-43458

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

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 14:22Z3 MO AGO

Last updated

2026-05-11 22:24Z3 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant
• CWE-911Improper Update of Reference CountBase

Data version

5.2

Document digest

fc76d7b1a40784b3beb4fc886e9892202aaa04dffb65e2c8f0e429014d5a1434

• git.kernel.orghttps://git.kernel.org/stable/c/23a3ac2e2262a291498567418227b99e1f3606b1
• git.kernel.orghttps://git.kernel.org/stable/c/52135420e9f75853ea0c6cea7b736e3e98495f7d
• git.kernel.orghttps://git.kernel.org/stable/c/ca2ceba983bb23ea0202c2882d963253416654a3
• git.kernel.orghttps://git.kernel.org/stable/c/8460187b4852fd00bd1c76394358053f3fa4d089
• git.kernel.orghttps://git.kernel.org/stable/c/27e43356d0defb9fc7fa25265219a3ffeb7b3e98
• git.kernel.orghttps://git.kernel.org/stable/c/35b58d3bc716ebb9ebd10fe1cac8c1177242511c
• git.kernel.orghttps://git.kernel.org/stable/c/97a0bb491cae39478c6225381f14e9ac67b7bba7
• git.kernel.orghttps://git.kernel.org/stable/c/288598d80a068a0e9281de35bcb4ce495f189e2a