CVE-2026-43178

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

0.13% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 3.2% 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

Modified. NVD last modified this record on 2026-07-15.

Red Hat severity

Important. 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 11:27Z4 MO AGO

Last updated

2026-08-05 12:26Z1 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-1341Multiple Releases of Same Resource or HandleBase

Data version

5.2

Document digest

a254e19cb2c3f91dabc9fbb5240d642bf79a1ca74a4a44a380731527bf09dcf4

• git.kernel.orghttps://git.kernel.org/stable/c/f9fe092084cd04deea18747f58a2304026e76aaa
• git.kernel.orghttps://git.kernel.org/stable/c/8adaff87db143583e08eec4f4e7788f1ef8af94d
• git.kernel.orghttps://git.kernel.org/stable/c/90f5e87c9b75833b9ef3a4415b92c0247f28ab2f
• git.kernel.orghttps://git.kernel.org/stable/c/61dc9f776705d6db6847c101b98fa4f0e9eb6fa3
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-43178vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2467227https://bugzilla.redhat.com/show_bug.cgi?id=2467227issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43178.jsonx_sadp-csaf-vex