CVE-2026-121953Critical· 9.8▾ AbyssalPoC availableFreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A mali…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 53.9 · likelihood 0 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.
FreeRDP < 3.32.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-121955High· 7.5FreeRDP before 3.32.2 Use-After-Free in Smartcard Emulation ReleaseContext
CVE-2026-114042Medium· 6.5FreeRDP 3.32.0 Use-After-Free via drdynvc Virtual Channel PDU
CVE-2026-26986Medium· 5.5FreeRDP has heap-use-after-free in rail_window_free
CVE-2026-23884Critical· 9.8FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-23883Critical· 9.8FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-121398Medium· 5.9FreeRDP before 3.32.2 Use-After-Free via dyn-channel-dump Module