CVE-2026-91948 FreeRDP before 3.31.0 Out-of-bounds Write via SHOW_PROTOCOL

FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNELOPTIONSHOWPROTOCOL is enabled. Authenticated clients can queue oversized channel messages that cause buffer underflow and corrupt heap memory including live...

CVE-2026-91948

FreeRDP versions before 3.31.0 are affected by an out-of-bounds write in the server-side static virtual channel handling when CHANNEL_OPTION_SHOW_PROTOCOL is enabled. An authenticated client can queue oversized channel messages, causing a buffer underflow that corrupts heap memory including live ...

PT-2026-92067

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An out-of-bounds write issue exists in server-side static virtual channel handling when CHANNEL OPTION SHOW PROTOCOL is enabled. Authenticated clients can queue oversized channel messages, leading t...