CVE-2026-43278

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

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.9% 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

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 11:29Z4 MO AGO

Last updated

2026-08-05 12:27Z1 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-415Double FreeVariant
• CWE-825Expired Pointer DereferenceBase

Data version

5.2

Document digest

a0f505f24cc5acad18ba89a401fb1a442323af10390aba77639d12d85c2e3be2

• git.kernel.orghttps://git.kernel.org/stable/c/8d9ddad561136f7e6a9346767bf97b4d79e38e67
• git.kernel.orghttps://git.kernel.org/stable/c/7daf279c674d515fb22a727a7bbc92aeb35c5442
• git.kernel.orghttps://git.kernel.org/stable/c/e2e738e8dfbbf83bd2bae0467ec4420cc52da42a
• git.kernel.orghttps://git.kernel.org/stable/c/b1c1a2637ebd675aa2d71fee8c70da8791d73850
• git.kernel.orghttps://git.kernel.org/stable/c/83d72091804600ead96dc9e9f518ea56cb4942f6
• git.kernel.orghttps://git.kernel.org/stable/c/fb8a6c18fb9a6561f7a15b58b272442b77a242dd