SaibaRadar

CVE-2026-121396 — Vulnerability intelligence

freerdp — freerdp

Published:

CVSS
5.3
CISA KEV
Not listed; not proof of no exploitation

Original source text (not a translation)

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.

Sources