CVE-2026-121393
Medium · 6.5CVSS
6.5
EPSS
0.4%
Published
Nov 3, 2026
CISA due date
—
The record
FreeRDP from 3.0.0 before 3.32.2 contains a denial of service vulnerability that allows malicious RDP servers to abort clients built with verbose WinPR assertions by sending crafted RemoteFX region rectangles. Attackers can supply a rectangle with x set to 65535 alongside a SurfaceBits destination left of 1, triggering a 16-bit coordinate assertion in rfx_process_message that terminates the client process.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
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- CVE-2026-121409 FreeRDP before 3.32.2 contains a denial of service vulnerability that allows malicious… CWE-617
- CVE-2026-121406 FreeRDP before 3.32.2 allows a client assertion abort because rdpgfx_on_data_received… CWE-617
- CVE-2026-121396 FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a… CWE-617
- CVE-2026-121395 FreeRDP from 3.17.0 before 3.32.2 contains an assertion failure in the RemoteFX… CWE-617
- CVE-2026-121394 FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR… CWE-617
- CVE-2026-121389 FreeRDP from 3.27.0 before 3.32.2 contains a denial of service vulnerability in… CWE-617
- CVE-2026-121390 FreeRDP 3.0.0 before 3.32.2 built with WITH_AAD=ON contains a reachable assertion because… CWE-617