CyberSecBulletin

X.orgg vulnerabilities

We track 2 vulnerabilities in X.orgg products across 2 products. 2 are rated high or critical, and none are known to be exploited. The most recent was published on October 28, 2026.

2vulnerabilities
0critical
2high
0exploited
8.2average CVSS score

Latest X.orgg vulnerabilities

  • 7.8 High severity

    xorg-x11-server: Heap-based Buffer Overflow

    CVE-2026-93519X.Org

    A buffer overflow when handling pointer barriers in the XFIXES extension in X.Org X server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context.

  • 8.5 High severity

    xorg-x11-server: Heap-based Buffer Overflow

    CVE-2026-93517X.orgg

    A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server con