CVE-2026-109947 FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read

FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRPMJREAD with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on...

CVE-2026-109946 FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width

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...

CVE-2026-109946

The FreeRDP client versions 3.11.0 before 3.32.0 are vulnerable to a reachable assertion (CWE-617) during YUV444 conversion. The software fails to validate that AVC444 and AVC444v2 region widths are even numbers. A malicious or compromised RDP server can trigger a client crash by sending an in-bo...

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...

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...

CVE-2026-109946 FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width

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...

CVE-2026-109945

FreeRDP versions 3.0.0 before 3.32.0 are vulnerable to a heap use-after-free vulnerability within the smartcard emulation component. The root cause is a race condition where the SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operations occur concurrently on a single card handle. A malicious RDP ...

CVE-2026-109945 FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit

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...

CVE-2026-109944 FreeRDP 3.0.0 before 3.32.0 Reachable Assertion via Stale Smartcard Handle

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...

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...

CVE-2026-109944

FreeRDP versions 3.0.0 before 3.32.0 are vulnerable to a Reachable Assertion (CWE-617) due to improper handle management. The software fails to remove card handles when Emulate_SCardReleaseContext releases a smartcard-emulation context. Consequently, a subsequent call to Emulate_SCardTransmit may...

CVE-2026-109942 FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet

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...

CVE-2026-109943 FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order

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...

CVE-2026-109942

FreeRDP versions 2.3.0 before 3.32.0 are vulnerable to a NULL Pointer Dereference in the rdg_process_close_packet function located in libfreerdp/core/gateway/rdg.c . The issue occurs because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and fails to check the payl...

CVE-2026-109943

FreeRDP versions 3.29.0 before 3.32.0 are vulnerable to a double free vulnerability in the client's async-update message proxy . The root cause occurs when the proxy shallow-copies the parser-owned PolygonSC or PolygonCB points array while numPoints is zero, leading to both the queue consumer and...

CVE-2026-109943 FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order

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...

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...

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...

CVE-2026-109942 FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet

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...

CVE-2026-109941 FreeRDP 2.3.0 before 3.32.0 Infinite Loop via RD Gateway Chunked Response

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 ...