freerdp security update

2:3.10.3-12.7 - Add codecID checks for CACHEBITMAPV3ORDER CVE-2026-55827 - Fix boundary checks in gdiBitmapDecompress CVE-2026-55827 Resolves: RHEL-194327...

CVE-2026-67298

A flaw was found in FreeRDP. A remote attacker, by sending a specially crafted Remote Desktop Protocol RDP packet, could trigger a heap buffer overflow in the server-side RAIL channel handler. This vulnerability, caused by an integer underflow, allows the attacker to corrupt memory and crash the...

Amazon Linux 2023 : freerdp, freerdp-devel, freerdp-libs (ALAS2023-2026-2012)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2012 advisory. Heap-buffer-overflow write in AVC444 YUV buffer allocation In libfreerdp/codec/h264.c, avc444ensurebuffer computes the AVC444 YUV444 intermediate buffer size as piDstSizex = piDstStridex...

The vulnerability of the `rdpei_server_handle_messages()` function in the `channels/rdpei/server/rdpei_main.c` file of the RDP client FreeRDP allows a attacker to trigger a service failure.

The vulnerability of the rdpeiserverhandlemessages function in the channels/rdpei/server/rdpeimain.c file of the RDP client FreeRDP is related to insufficient input validation. Exploiting this vulnerability could allow a malicious actor to cause service failures...

Vulnerability of the update_message_WindowIcon() function in the RDP client FreeRDP, allowing a hacker to trigger memory corruption and service failure

The vulnerability of the updatemessageWindowIcon function in the RDP client FreeRDP relates to the possibility of using memory after it is freed. Exploiting this vulnerability could allow a remote attacker to cause memory corruption and service failure...

The vulnerability of the functions free_reader_states_a() and free_reader_states_w() in the RDP client FreeRDP, which allows a intruder to cause a service failure.

The vulnerability of the freereaderstatesa and freereaderstatesw functions in the RDP client FreeRDP is related to pointer swapping errors. Exploiting this vulnerability could allow a remote attacker to cause service failure...

Important: freerdp

Issue Overview: Heap-buffer-overflow write in AVC444 YUV buffer allocation In libfreerdp/codec/h264.c, avc444ensurebuffer computes the AVC444 YUV444 intermediate buffer size as piDstSizex = piDstStridex padDstHeight using UINT32 arithmetic. When the true product exceeds UINT32MAX, the value wraps...

The vulnerability of the http_proxy_connect() function in the RDP client FreeRDP allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information.

The vulnerability of the httpproxyconnect function in the RDP client FreeRDP is related to the lack of handling for CRLF sequences in HTTP headers when processing the variable ServerHostname. Exploiting this vulnerability allows an attacker to compromise the confidentiality, integrity, and...

Amazon Linux 2 : freerdp, --advisory ALAS2-2026-3840 (ALAS-2026-3840)

The version of freerdp installed on the remote host is prior to 2.11.7-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3840 advisory. Heap-buffer-overflow write in TS Gateway RPC fragment receive due to uncapped bindack maxxmitfrag On TS Gateway...

SUSE CVE-2026-67289

FreeRDP before 3.29.0 affected versions = 3.28.0 does not validate CRLF and control characters in the server-controlled RDP redirection TargetNetAddress field. This value is copied into the client's ServerHostname and, when the client connects through an HTTP proxy, is written directly into the...

SUSE CVE-2026-67296

FreeRDP before 3.29.0 contains a denial of service vulnerability in the RDPEI server channel handler that fails to validate maximum PDU body length before stream allocation. A malicious RDP client can send a header-only RDPEI message with a large declared body length to force excessive memory...

CVE-2026-67299

A flaw was found in FreeRDP. A malicious or compromised Remote Desktop Protocol RDP server can exploit a heap use-after-free vulnerability when a client connects with asynchronous updates enabled. By sending a specially crafted Window Alternate Secondary Order message, the server can trigger memo...

CVE-2026-67292

A flaw was found in FreeRDP, a remote desktop protocol client. A malicious server or WebSocket peer could send a specially crafted Ping control frame. This could cause the client to send an overly long Pong reply, leading to the disclosure of sensitive information beyond the intended payload...

CVE-2026-66402

A flaw was found in FreeRDP. This flaw involves multiple weaknesses in how FreeRDP validates TLS Transport Layer Security certificates. FreeRDP's custom validation logic can incorrectly process DNS Subject Alternative Name SAN values, accept Common Names without proper comparison to other SAN...

CVE-2026-67293

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. The software's Transport Layer Security TLS hostname matcher incorrectly validates wildcard certificates, allowing it to accept certificates for multi-label subdomains that should not be covered. This...

CVE-2026-67300

A flaw was found in FreeRDP. This client-side heap use-after-free vulnerability occurs when a malicious or compromised Remote Desktop Protocol RDP server sends specially crafted update orders. The async update message proxy incorrectly handles memory by shallow-copying structures with pointers th...

CVE-2026-67306

A flaw was found in FreeRDP. An out-of-bounds read vulnerability exists in the RDP6 planar RLE bitmap decoder. A malicious or compromised Remote Desktop Protocol RDP server can send a specially crafted bitmap or surface update. This can cause the client to read beyond the intended memory buffer,...

CVE-2026-68580

A flaw was found in FreeRDP, an open-source implementation of the Remote Desktop Protocol RDP. This vulnerability, an integer overflow in the audio input redirection channel, allows a remote attacker to supply a malicious FramesPerPacket value. This can lead to a heap-based buffer overflow,...

TencentOS Server 4: freerdp (TSSA-2026:0775)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0775 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

The vulnerability of the RDP client FreeRDP, related to buffer overflow in dynamic memory, allows a hacker to trigger a service failure.

The vulnerability of the RDP client FreeRDP is related to overflow in the buffer in dynamic memory. Exploiting this vulnerability can allow a remote attacker to cause a service failure...