CVE-2026-43239

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

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 28.4% 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:N/AC:L/PR:N/UI:R/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

2026-05-06 11:28Z4 MO AGO

Last updated

2026-08-05 12:26Z1 MO AGO

Reserved

2026-05-01

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

• CWE-821Incorrect SynchronizationBase

Data version

5.2

Document digest

72e0d240e56c5d90da493e8ff77dec9e64658efb3baef6fa0fddf9c8b0d4d8b9

• git.kernel.orghttps://git.kernel.org/stable/c/93e8e3ee165ae4609a1222b516b573837103d2c3
• git.kernel.orghttps://git.kernel.org/stable/c/ab6564f416a6eaf1199200b6100952407b438f7d
• git.kernel.orghttps://git.kernel.org/stable/c/6287eefaf21ec805d42f941bd368018cf397a7f5
• git.kernel.orghttps://git.kernel.org/stable/c/76cc4faba0343c6db945b8dc75425b33d633e1b8
• git.kernel.orghttps://git.kernel.org/stable/c/c3c06e42e1527716c54f3ad2ced6a034b5f3a489