VULNERABILITY INTELLIGENCE

CVE-2023-5574

CVSS score7 HIGH
EPSS probability0.61%
CISA KEVNot currently listed
Published2023-10-25
Last modified2026-06-23
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.

Weakness classification

  • CWE-416: Use After Free

Primary references