CVE-2026-110836: Loop with Unreachable Exit Condition

FreeRDP from 3.0.0 before 3.32.0 contains an infinite loop vulnerability in httpresponserecv that allows malicious gateways to exhaust client CPU via crafted Content-Type headers. Attackers controlling a gateway can return a nonzero Content-Length with a semicolon-containing unrecognized...

CVE-2026-110839: Out-of-bounds Write

FreeRDP 3.3.0 before 3.32.0, when built with WINPRUTILSIMAGEJPEG=ON, has a heap-based out-of-bounds write in winprconvertfromjpeg because grayscale JPEG buffers are sized from one input component rather than three BGR output components. A malicious RDP server can offer a grayscale JPEG via...

DEBIAN-CVE-2026-109953

FreeRDP 3.0.0 before 3.32.0 contains an insufficiently protected credentials vulnerability where the /restricted-admin option fails to suppress CredSSP credential delegation, sending the cleartext password to the RDP server. A compromised or man-in-the-middle destination host can decode...

CVE-2026-109953

FreeRDP 3.0.0 before 3.32.0 contains an insufficiently protected credentials vulnerability where the /restricted-admin option fails to suppress CredSSP credential delegation, sending the cleartext password to the RDP server. A compromised or man-in-the-middle destination host can decode...

DEBIAN-CVE-2026-109950

FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages...

DEBIAN-CVE-2026-109952

The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOLRDSTLS or PROTOCOLHYBRIDEX against its enabled protocol set in negoprocessnegotiationresponse, allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla...

DEBIAN-CVE-2026-109951

FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATEREQUESTPDU whose channel name lacks a NU...

DEBIAN-CVE-2026-109949

FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset...

DEBIAN-CVE-2026-109948

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109949

FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset...

CVE-2026-109950

FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages...

CVE-2026-109952

The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOLRDSTLS or PROTOCOLHYBRIDEX against its enabled protocol set in negoprocessnegotiationresponse, allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla...

CVE-2026-109948

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109951

FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATEREQUESTPDU whose channel name lacks a NU...

DEBIAN-CVE-2026-109941

FreeRDP from 2.3.0 before 3.32.0 contains an infinite loop vulnerability in httpchunckedread that allows malicious RD Gateways to hang clients by sending incomplete chunked responses. Attackers can send a partial chunk-size line or footer followed by a clean TLS shutdown, causing zero-byte reads ...

DEBIAN-CVE-2026-109943

FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A malicious RDP server can send a point-bearing...

DEBIAN-CVE-2026-109942

FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdgprocessclosepacket in libfreerdp/core/gateway/rdg.c because rdgprocesscontrolpacket accepts a header-only PKTTYPECLOSECHANNEL packet and passes the null payload without a check. A malicious or compromised RD Gateway can send an eight-by...

DEBIAN-CVE-2026-109946

FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by...

DEBIAN-CVE-2026-109945

FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARDIOCTLDISCONNECT and SCARDIOCTLTRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate context workers to free and reuse the SCardHandl...

DEBIAN-CVE-2026-109944

FreeRDP 3.0.0 before 3.32.0 does not remove card handles when EmulateSCardReleaseContext releases a smartcard-emulation context, so EmulateSCardTransmit later looks up the deleted parent context and reaches a terminating WINPRASSERT. A malicious RDP server can crash a connecting client with...