7.1
High
CVE-2026-121959 FreeRDP before 3.32.2 Infinite Loop via Truncated WebSocket Frame
Description
FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS close_notify, causing a client thread to spin and consume CPU until killed.
CVSS 4.0 detail
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitable remotely over the network, without an account and if a user takes an action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- Interaction
- Passive
- Confidentiality
- None
- Integrity
- None
- Availability
- High
- Confidentiality of other systems
- None
- Integrity of other systems
- None
- Availability of other systems
- None
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| FreeRDP 3.32 | earliest → < 3.32.2 | 3.32.2 |
Other CVEs of FreeRDP
The 324 CVEs of FreeRDP →
CVE-2026-121964
FreeRDP before 3.32.2 Heap Buffer Overflow via rpc_client_recv_fragment
8.7
High
CVE-2026-121963
FreeRDP before 3.32.2 Use-After-Free via Dynamic rdpsnd Channel Close
8.2
High
CVE-2026-121962
FreeRDP before 3.32.2 Heap Buffer Overflow via Early User Authorization Read
7.2
High
CVE-2026-121961
FreeRDP before 3.32.2 Use-After-Free via DRDYNVC Tracker Race
8.2
High