{"api_version":"1","generated_at":"2026-07-23T14:43:01+00:00","cve":"CVE-2026-64621","urls":{"html":"https://cve.report/CVE-2026-64621","api":"https://cve.report/api/cve/CVE-2026-64621.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64621","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64621"},"summary":{"title":"FreeRDP before 3.28.0 Double-Free via selectedmonitors","description":"FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdp_client_rdp_file_apply_to_settings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorIds array is allocated through the settings object, and a raw non-owning pointer to it is freed on the strtoul error path without clearing settings->MonitorIds, leaving it dangling; at teardown freerdp_settings_free() frees the same buffer again. An attacker who convinces a victim to open a crafted .rdp file with oversized monitor tokens can trigger a size-controlled double-free in any FreeRDP CLI client (xfreerdp/sdl-freerdp/wlfreerdp) in the default configuration.","state":"PUBLISHED","assigner":"VulnCheck","published_at":"2026-07-20 12:19:46","updated_at":"2026-07-20 12:19:46"},"problem_types":["CWE-415","CWE-415 Double 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before 3.28.0 Double-Free via selectedmonitors","CVE":"CVE-2026-64621","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64621","Ordinal":"1","NoteData":"FreeRDP before 3.28.0 (affected 3.x through 3.27.1) contains a double-free vulnerability in freerdp_client_rdp_file_apply_to_settings() (client/common/file.c) when parsing the selectedmonitors field of a .rdp connection file. The MonitorIds array is allocated through the settings object, and a raw non-owning pointer to it is freed on the strtoul error path without clearing settings->MonitorIds, leaving it dangling; at teardown freerdp_settings_free() frees the same buffer again. An attacker who convinces a victim to open a crafted .rdp file with oversized monitor tokens can trigger a size-controlled double-free in any FreeRDP CLI client (xfreerdp/sdl-freerdp/wlfreerdp) in the default configuration.","Type":"Description","Title":"FreeRDP before 3.28.0 Double-Free via selectedmonitors"}]}}}