CVE-2026-43264

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

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.7% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. 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

2026-05-06 11:28Z4 MO AGO

Last updated

2026-05-11 22:21Z3 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-911Improper Update of Reference CountBase

Data version

5.2

Document digest

b99493a05a7680b3861952cf62a4054f8f0f520ec07ba1bf85d9057cc4e61207

• git.kernel.orghttps://git.kernel.org/stable/c/20881ad42e651c69d89eb38a2042838187900fd6
• git.kernel.orghttps://git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3
• git.kernel.orghttps://git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368
• git.kernel.orghttps://git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70
• git.kernel.orghttps://git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed
• git.kernel.orghttps://git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64
• git.kernel.orghttps://git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e
• git.kernel.orghttps://git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7