{"id":"CVE-2026-93517","revision":"b83ac2c45dbb4bb8bfeccfee1d3e617a","records":[{"revision":"b83ac2c45dbb4bb8bfeccfee1d3e617a","observedAt":"2026-10-28T14:46:48.769+00:00","statement":{"source":"cve-program","id":"CVE-2026-93517","aliases":[],"title":"X.Org Server GLX RenderLarge Heap Buffer Overflow","description":"A heap buffer overflow in handling\u00A0GLX\nRenderLarge request\u00A0where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14\u00A0that could be\u00A0be triggered by an authenticated X client could cause crashes or code execution in X server context.","state":0,"publishedAt":"2026-10-28T13:16:39.431+00:00","modifiedAt":"2026-10-28T13:16:39.431+00:00","affected":[{"ecosystem":"Vendor product","name":"xorg-x11-server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"x.orgg\",\n                    \"product\": \"xorg-x11-server\",\n                    \"packageName\": \"xorg-x11-server\",\n                    \"repo\": \"https://gitlab.freedesktop.org/xorg/xserver\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"21.1.25\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"},{"ecosystem":"Vendor product","name":"xwayland","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"x.org\",\n                    \"product\": \"xwayland\",\n                    \"packageName\": \"xwayland\",\n                    \"repo\": \"https://gitlab.freedesktop.org/xorg/xserver\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"24.1.14\",\n                            \"versionType\": \"rpm\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.5,"severity":"HIGH"}],"references":["https://gitlab.freedesktop.org/xorg/xserver/-/commit/2abe4632d793314d3d5f28c19583fb76019f5ce4"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93517","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93517","identifiers":["CVE-2026-93517"]},"retained":false,"historicalAffected":[]}],"coverage":[]}