xorg-server vulnerabilities
4 known CVE vulnerabilities in xorg-server, translated and rated.
- CVE-2026-56000High
A vulnerability in Xorg server and Xwayland allows local attackers with an X connection to trigger a Heap Use-After-Free via the CommonMakeCurrent() function, which may point to potentially reallocated memory.
- CVE-2026-55999High
A vulnerability in Xorg server and Xwayland before versions 21.2.24 and 24.1.13 allows local attackers with an X connection to cause a heap buffer overflow via the SetFont function using crafted PCX fonts. Missing glyph boundary checks lead to buffer overflow.
- CVE-2023-6478High
A flaw was found in xorg-server that can be triggered by a specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty. This may lead to an integer overflow, potentially resulting in the disclosure of sensitive information.
- CVE-2023-6377High
A flaw was found in xorg-server that allows for out-of-bounds memory reads and writes when querying or changing XKB button actions, such as moving from a touchpad to a mouse. This may lead to local privilege escalation or possible remote code execution in cases where X11 forwarding is involved.

