CVE Tools

Xorg-x11-server

16 CVEs tracked. None of them is in CISA KEV.

This hub aggregates every CVE we track for Xorg-x11-server, a product in the operating systems space. Use it to gauge the current risk picture and drill into individual advisories.

Xorg-x11-server CVEs per month

Oct 2024 to Sep 2026. Point at a month, or focus the strip and use the arrow keys.
Xorg-x11-server CVEs per month
MonthCVEs
2024-100
2024-110
2024-120
2025-010
2025-020
2025-030
2025-040
2025-050
2025-060
2025-070
2025-080
2025-090
2025-100
2025-110
2025-120
2026-010
2026-020
2026-030
2026-040
2026-050
2026-060
2026-071
2026-080
2026-090

Severity

How the 16 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.

  • Critical1169%
  • High319%
  • Medium213%

Latest CVEs

The 15 most recently published vulnerabilities affecting Xorg-x11-server.

  1. CVE-2026-56000xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()7.8
  2. CVE-2023-6377Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions7.8
  3. CVE-2020-25712A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is to dat...7.8
  4. CVE-2020-14347A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could...5.5
  5. CVE-2017-2624It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the ...5.9
  6. CVE-2017-12178xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  7. CVE-2017-12182xorg-x11-server before 1.19.5 was missing length validation in XFree86 DRI extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  8. CVE-2017-12187xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  9. CVE-2017-12183xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  10. CVE-2017-12181xorg-x11-server before 1.19.5 was missing length validation in XFree86 DGA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  11. CVE-2017-12179xorg-x11-server before 1.19.5 was vulnerable to integer overflow in (S)ProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  12. CVE-2017-12177xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  13. CVE-2017-12186xorg-x11-server before 1.19.5 was missing length validation in X-Resource extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  14. CVE-2017-12184xorg-x11-server before 1.19.5 was missing length validation in XINERAMA extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8
  15. CVE-2017-12180xorg-x11-server before 1.19.5 was missing length validation in XFree86 VidModeExtension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.9.8

Product grouping is registry-driven, with AI assist and human review. How it works

We use analytics cookies to see which pages and articles actually help people. Decline and none of them run — the site works the same. What we store