CVE-2026-64621 - FreeRDP before 3.28.0 Double-Free via selectedmonitors

CVE-2026-64621 - FreeRDP before 3.28.0 Double-Free via selectedmonitors

https://cvefeed.io/rssfeed/latest.atom / Mon, 07/20/2026 - 16:06
CVE ID :CVE-2026-64621
Published : July 20, 2026, 12:19 p.m. | 29 minutes ago
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.
Severity: 9.3 | CRITICAL
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