CVE-2026-121396

MediumCVSS 4.3/10Last modified Nov 3, 2026

Description

FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a reachable assertion in rts_read_auth_verifier triggered by malformed RTS padding. Attackers controlling an RD Gateway can send a crafted RPC-over-HTTP RTS PDU with inconsistent authentication padding to abort the connecting client process.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-617

Affected software

No affected versions have been published.

Timeline

Published
Nov 3, 2026
Last modified
Nov 3, 2026
NVD status
Analyzed

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CVE-2026-121396: Medium severity, CVSS 4.3 | Vulnix