{"id":"CVE-2026-110839","revision":"6eff74f0b4574e8e8ef312f634984682","records":[{"revision":"6eff74f0b4574e8e8ef312f634984682","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-110839","aliases":[],"title":"FreeRDP 3.3.0 before 3.32.0 Heap Out-of-Bounds Write via Grayscale JPEG Clipboard Data","description":"FreeRDP 3.3.0 before 3.32.0, when built with WINPR_UTILS_IMAGE_JPEG=ON, has a heap-based out-of-bounds write in winpr_convert_from_jpeg because grayscale JPEG buffers are sized from one input component rather than three BGR output components. A malicious RDP server can offer a grayscale JPEG via clipboard redirection, corrupting client memory and crashing it when the item is pasted as CF_DIB bitmap data.","state":0,"publishedAt":"2026-10-14T22:52:14.54+00:00","modifiedAt":"2026-10-15T15:33:06.233+00:00","affected":[{"ecosystem":"Vendor product","name":"FreeRDP","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FreeRDP\",\n                    \"product\": \"FreeRDP\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.3.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.32.0\"\n                        },\n                        {\n                            \"version\": \"3.32.0\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","score":7.1,"severity":"HIGH"}],"references":["https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-99p4-8j24-wvj4","https://www.vulncheck.com/advisories/freerdp-3.3.0-before-3.32.0-heap-out-of-bounds-write-via-grayscale-jpeg-clipboard-data"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-110839","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-110839","identifiers":["CVE-2026-110839"]},"retained":false,"historicalAffected":[]}],"coverage":[]}