CVE-2023-43787 HIGH

CVE-2023-43787: Libx11: integer overflow in xcreateimage() leading to a heap overflow

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-122
Published October 10, 2023
Last update November 6, 2025
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.

Key dates

02Disclosure timeline

October 10, 2023 CVE published
November 6, 2025 Record updated