freerdp: FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

A flaw was found in FreeRDP server. This vulnerability allows unauthenticated attackers to bypass server policies that disable Remote Desktop Services over Transport Layer Security RDSTLS connections. By sending incompatible protocol requests and then completing a TLS handshake, attackers can...

freerdp: FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

A flaw was found in FreeRDP server. This vulnerability allows unauthenticated attackers to bypass server policies that disable Remote Desktop Services over Transport Layer Security RDSTLS connections. By sending incompatible protocol requests and then completing a TLS handshake, attackers can...

CVE-2026-91949

A flaw was found in FreeRDP server. This vulnerability allows unauthenticated attackers to bypass server policies that disable Remote Desktop Services over Transport Layer Security RDSTLS connections. By sending incompatible protocol requests and then completing a TLS handshake, attackers can...

FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling

A vulnerability in FreeRDP's server-side RDSTLS allows remote, unauthenticated attackers to bypass authentication. By sending a crafted capabilities PDU instead of the expected authentication request, an attacker can gain an authenticated session without valid credentials...

SUSE CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

DEBIAN-CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

UBUNTU-CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949 FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949 FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

EUVD-2026-78806

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949

FreeRDP server versions 3.0.0 through 3.30.0 (before 3.31.0 ) contain a protocol negotiation bypass vulnerability. The root cause, as described in the associated GHSA advisory (GHSA-x7v6-xfx3-52j6), is that the server continues after a negotiation failure and dispatches a failure code as RDSTLS ,...

CVE-2026-91949 FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949: Protection Mechanism Failure

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

PT-2026-92068

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description Unauthenticated attackers can bypass the protocol policy to establish RDSTLS connections even when the server policy has explicitly disabled them. This is achieved by sending incompatible protocol...

CVE-2026-91949: Protection Mechanism Failure

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

FreeRDP: FreeRDP: Authentication bypass via incorrect RDSTLS PDU handling

A vulnerability in FreeRDP's server-side RDSTLS allows remote, unauthenticated attackers to bypass authentication. By sending a crafted capabilities PDU instead of the expected authentication request, an attacker can gain an authenticated session without valid credentials...

SUSE CVE-2026-73241

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.30.0, FreeRDP server-side RDSTLS in libfreerdp/core/rdstls.c accepts an attacker-supplied RDSTLSTYPECAPABILITIES PDU while rdstlsserverauthenticate is waiting for RDSTLSTYPEAUTHREQ, leaving resultCode at RDSTLSRESULTSUCCE...