FreeRDP: FreeRDP: Out-of-bounds read leads to denial of service and information disclosure

A flaw was found in FreeRDP, an implementation of the Remote Desktop Protocol. A malicious RDP server can exploit an out-of-bounds read vulnerability by sending a malformed planar bitmap or surface update. This causes the client's decoder to read beyond its allocated buffer, which can lead to a...

FreeRDP: FreeRDP: Resource exhaustion due to oversized chunked HTTP responses

A vulnerability in FreeRDP allows a malicious RD Gateway to bypass client-side size limits by sending oversized chunked HTTP responses. This exhausts the client's memory, resulting in a Denial of Service DoS...

freerdp: FreeRDP: Arbitrary code execution via heap buffer overflow in Opus audio decode

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. A malicious Remote Desktop Protocol RDP server can exploit a heap buffer overflow vulnerability during Opus audio decoding. This occurs when the server negotiates Opus audio with a vulnerable client, causing the...

FreeRDP: FreeRDP: Out-of-bounds read leads to memory disclosure or client crash

A flaw was found in FreeRDP. A malicious Remote Desktop Protocol RDP server can provide a specially crafted H.264 video stream that causes the client's H.264 decoder to read beyond its allocated memory. This out-of-bounds read can lead to the disclosure of sensitive client memory or cause the...

Important: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

FreeRDP: FreeRDP: Out-of-bounds memory access in Kerberos decryption

A flaw in FreeRDP's Kerberos implementation allows a malicious RDP peer to cause an out-of-bounds memory access by providing an unbounded GSS Wrap-token EC field. This occurs during CredSSP/NLA decryption and can lead to a denial of service or information disclosure...

FreeRDP: FreeRDP: Denial of Service via malformed media data

A flaw was found in FreeRDP. A malicious Remote Desktop Protocol RDP server can send specially crafted media data to a connected client. This malformed data can trigger a heap out-of-bounds read vulnerability within the TSMF FFmpeg decoder, leading to the client application crashing. This can...

FreeRDP: FreeRDP: Denial of Service via integer underflow in RAIL channel handling

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...

FreeRDP: FreeRDP: Denial of Service via null pointer dereference in smartcard cleanup

A null pointer dereference flaw in FreeRDP allows a remote attacker to cause a denial of service DoS via specially crafted smartcard requests. If reader-state decoding fails, the system attempts to free uninitialized states during cleanup, resulting in a process crash...

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...

FreeRDP: FreeRDP: Denial of Service due to RDPEI message processing

A flaw was found in FreeRDP. A remote attacker can exploit a vulnerability in the Remote Desktop Protocol RDP Enhanced Input RDPEI server channel handler. By sending a malicious RDPEI message with an oversized declared body length, the attacker can force the server to allocate excessive memory,...

FreeRDP: FreeRDP: Denial of Service via crafted smartcard cache requests

A flaw was found in FreeRDP. When smartcard emulation is enabled, a remote attacker can send specially crafted smartcard cache requests to a FreeRDP client. This can lead to a null pointer dereference, causing the client process to terminate and disrupting active remote desktop sessions...

FreeRDP: FreeRDP: Memory disclosure or denial of service via crafted RDP update orders

A flaw was found in FreeRDP. When the async-update feature is enabled, a malicious or compromised Remote Desktop Protocol RDP server can send specially crafted update orders. This can lead to an out-of-bounds read, potentially exposing sensitive information or causing the client application to...

FreeRDP: FreeRDP: Denial of Service via heap out-of-bounds read

A heap out-of-bounds read vulnerability in FreeRDP allows an unauthenticated, malicious RDP server to cause a Denial of Service. By sending a specially crafted glyph fragment update, the server forces the client to read beyond its allocated memory, crashing the application...

SUSE CVE-2026-91945

FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKIDCOREDEVICEIOCOMPLETION responses to trigger reads past...

SUSE CVE-2026-91946

FreeRDP versions before 3.31.0 contain an information disclosure vulnerability in the RDPGFX server's ResetGraphics PDU serializer that fails to initialize padding bytes in the fixed 340-byte wire format. Attackers can receive uninitialized heap memory including live pointers and GLib function...

SUSE CVE-2026-91947

FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

SUSE CVE-2026-91948

FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in server-side static virtual channel handling when CHANNELOPTIONSHOWPROTOCOL is enabled. Authenticated clients can queue oversized channel messages that cause buffer underflow and corrupt heap memory including live...

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...

SUSE CVE-2026-91950

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the rdpdrdumppacket function due to 32-bit unsigned integer wraparound in buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet with computerNameLen set to 0xFFFFFFF0 to bypass bounds checks and trigg...