CVE-2026-43420

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

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 0.7% of scored records. A rank, not a probability.

NVD base score

4.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/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

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 14:21Z3 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-367Time-of-check Time-of-use (TOCTOU) Race ConditionBase

Data version

5.2

Document digest

1a3b874834a75eb05f16761b07ed15f301792da8a5aac46b26e6c703491ae755

• git.kernel.orghttps://git.kernel.org/stable/c/9b31e88ac5623d15c8bc46f69dfe1d3b43a8f67c
• git.kernel.orghttps://git.kernel.org/stable/c/6d5fd8bb574bef039eb3b738e523870433a2aeb9
• git.kernel.orghttps://git.kernel.org/stable/c/fcc477a6e8856c8a42b3c9e171724d8d6dfadd06
• git.kernel.orghttps://git.kernel.org/stable/c/b3f5513141ecc6b277a8f7b7efe58a0cf9a5e859
• git.kernel.orghttps://git.kernel.org/stable/c/aedd29386b23f3e1e6818943e11abfff2953732f
• git.kernel.orghttps://git.kernel.org/stable/c/7db008e85a5d17b64bc5390b828bf457ae91a415
• git.kernel.orghttps://git.kernel.org/stable/c/8975b85b0d45ca811ace6fac5907652f2310e5ac
• git.kernel.orghttps://git.kernel.org/stable/c/ce0123cbb4a40a2f1bbb815f292b26e96088639f