X.org Server
55 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for X.org Server, a product in the operating systems space. Use it to gauge the current risk picture and drill into individual advisories.
X.org Server CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 1 |
| 2024-11 | 0 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 8 |
| 2025-03 | 1 |
| 2025-04 | 0 |
| 2025-05 | 0 |
| 2025-06 | 4 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 3 |
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 3 |
| 2026-05 | 2 |
| 2026-06 | 8 |
| 2026-07 | 0 |
| 2026-08 | 0 |
| 2026-09 | 0 |
Severity
How the 55 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical1
- High43
- Medium10
- Low1
Latest CVEs
The 15 most recently published vulnerabilities affecting X.org Server.
- CVE-2026-50263Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()5.5
- CVE-2026-50262Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds read/write in glx changedrawableattributes5.5
- CVE-2026-50264Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds heap write in dri2 drigetbuffers/drigetbufferswithformat7.8
- CVE-2026-50261Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in syncchangecounter()7.8
- CVE-2026-50260Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in freecounter()7.8
- CVE-2026-50258Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels7.8
- CVE-2026-50259Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing7.8
- CVE-2026-50257Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free in misyncdestroyfence()7.8
- CVE-2026-34002Xorg: xwayland: x.org x server: information disclosure or denial of service via out-of-bounds read in xkb modifier map handling6.1
- CVE-2026-34000Xwayland: xorg: x.org x server: information disclosure and denial of service via out-of-bounds read in xkb geometry processing.6.1
- CVE-2026-34003Xorg: xwayland: x.org x server: information exposure and denial of service via out-of-bounds memory access7.8
- CVE-2026-34001Xorg: xwayland: x.org x server: use-after-free vulnerability leads to server crash and potential memory corruption7.8
- CVE-2026-33999Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling7.8
- CVE-2025-62229Xorg: xmayland: use-after-free in xpresentnotify structure creation7.3
- CVE-2025-62230Xorg: xwayland: use-after-free in xkb client resource removal7.3
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