CVE-2026-43500

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

92.86% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.8% 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 2026-08-24.

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

2026-05-11 06:26Z3 MO AGO

Last updated

2026-09-01 12:05Z2 DAYS 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-787Out-of-bounds WriteBase

Data version

5.2

Document digest

193c2ed1d368d6b4b4a75085ca3982b2b3e40b8067c3dd162b5c8a5e20613e3c

• git.kernel.orghttps://git.kernel.org/stable/c/7c504ffab3efce8f7e4f463b314ae31030bdf18b
• git.kernel.orghttps://git.kernel.org/stable/c/3711382a77342a9a1c3d2e7330dcfc7ea927f568
• git.kernel.orghttps://git.kernel.org/stable/c/3eae0f4f9f7206a4801efa5e0235c25bbd5a412c
• git.kernel.orghttps://git.kernel.org/stable/c/d45179f8795222ce858770dc619abe51f9d24411
• git.kernel.orghttps://git.kernel.org/stable/c/aa54b1d27fe0c2b78e664a34fd0fdf7cd1960d71
• github.comhttps://github.com/V4bel/dirtyfragexploit
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-43500vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2468273https://bugzilla.redhat.com/show_bug.cgi?id=2468273issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43500.jsonx_sadp-csaf-vex