CVE-2026-43456

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

0.16% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 5.7% 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

Modified. NVD last modified this record on 2026-07-24.

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

2026-05-08 14:22Z3 MO AGO

Last updated

2026-08-05 12:28Z1 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-908Use of Uninitialized ResourceBase
• CWE-843Access of Resource Using Incompatible Type ('Type Confusion')Base

Data version

5.2

Document digest

35d621a0558933cd3ad61b23009a5b433445a7d5d6eb8532dacaf3afd43c2f62

• git.kernel.orghttps://git.kernel.org/stable/c/5d0fb9806ab6cf2c3cfba0e1b8c701da65e25af8
• git.kernel.orghttps://git.kernel.org/stable/c/9baf26a91565b7bb2b1d9f99aaf884a2b28c2f6d
• git.kernel.orghttps://git.kernel.org/stable/c/6ac890f1d60ac3707ee8dae15a67d9a833e49956
• git.kernel.orghttps://git.kernel.org/stable/c/95597d11dc8bddb2b9a051c9232000bfbb5e43ba
• git.kernel.orghttps://git.kernel.org/stable/c/950803f7254721c1c15858fbbfae3deaaeeecb11