{"action":"Upgrade freerdp3 to 3.27.0+dfsg-1 or later.","affected":[{"fixed":"3.27.0+dfsg-1","introduced":"0"}],"component":"freerdp3","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.27.0+dfsg-1"],"id":"tcs_01M5NSZYVS9XFHND6NWQXJF0GS","modified_at":"2026-10-27T10:02:09.645992695Z","published_at":"2026-08-19T18:16:44.427Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-55191","https://security-tracker.debian.org/tracker/CVE-2026-55191"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-55191#Debian:14/freerdp3","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-55191"}],"summary":"FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients that negotiate RDPGFX AVC444 with an H.264 decoder backend calculate the intermediate YUV444 allocatio"}