CVE-2026-43018

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 17.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:A/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

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 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant
• CWE-413Improper Resource LockingBase

Data version

5.2

Document digest

523bbf9e3ced8543cdb2e4dfdb5117b84129c5bcb501514a46692b0eeea100f3

• git.kernel.orghttps://git.kernel.org/stable/c/59eecf0ffde15670e6a5e10c47be67f73d843b20
• git.kernel.orghttps://git.kernel.org/stable/c/5fb69e1eeea9d6cba80517e9f058b56b34bc3a81
• git.kernel.orghttps://git.kernel.org/stable/c/7cadb03be37e761130edb153544fe0770a842b19
• git.kernel.orghttps://git.kernel.org/stable/c/1d0bdbfe3e91c11f0a704c52443a9446a10d699c
• git.kernel.orghttps://git.kernel.org/stable/c/ea3cd36d7382d5f8309df04c275d20df139ed42c
• git.kernel.orghttps://git.kernel.org/stable/c/b255531b27da336571411248c2a72a350662bd09