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.
https://bugzilla.redhat.com/show_bug.cgi?id=2242254
https://access.redhat.com/security/cve/CVE-2023-43787
https://access.redhat.com/errata/RHSA-2024:2973
https://access.redhat.com/errata/RHSA-2024:2145
https://security.netapp.com/advisory/ntap-20231103-0006/
https://lists.debian.org/debian-lts-announce/2023/10/msg00005.html
https://jfrog.com/blog/xorg-libx11-vulns-cve-2023-43786-cve-2023-43787-part-two/
http://www.openwall.com/lists/oss-security/2024/01/24/9
Source: Mitre, NVD
Published: 2023-10-10
Updated: 2025-11-04
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00061