PT-2026-111536

Name of the Vulnerable Software and Affected Versions FreeRDP versions 2.3.0 through 3.31.0 Description An infinite loop exists in the http chuncked read function. A malicious RD Gateway can cause clients to hang by sending incomplete chunked responses, such as a partial chunk-size line or footer...

CVE-2026-109948: Exposure of Sensitive Information to an Unauthorized Actor

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: Out-of-bounds Read

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...

CVE-2026-109678: Reachable Assertion

FreeRDP 3.0.0-beta1 before 3.32.0, when built with verbose WinPR assertions and using smartcard emulation, has a reachable assertion: the emulated SCardStatusA passes a NULL reader-name destination to scardcopystrings. A malicious RDP server can send an SCardStatusA request with...

CVE-2026-109679: NULL Pointer Dereference

FreeRDP 3.0.0-beta4 before 3.32.0 contains a NULL pointer dereference in armhandlerequestok when an ARM endpoint returns an empty HTTP 200 body. Attackers controlling the configured ARM gateway can return a zero-length body to pass NULL to strnlen and crash the connecting client...

CVE-2026-109680: Out-of-bounds Write

FreeRDP 3.18.0 before 3.32.0 has a heap-based out-of-bounds write in freerdpinterruptiblegetline, which shrinks the buffer to 32 bytes while keeping a pre-filled suggested username's length as its write offset. A malicious or compromised ARM routing service can return a long redirectedUsername th...

PT-2026-111528

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.0.0-beta1 through 3.31.0 Description An issue exists in smartcard handling where a use-after-free condition occurs. This allows an attacker to access a freed smartcard handle object following an invalid connect operation. By...

CVE-2026-109941: Loop with Unreachable Exit Condition

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 ...

PT-2026-111532

Name of the Vulnerable Software and Affected Versions FreeRDP versions 3.18.0 through 3.31.0 Description A heap-based out-of-bounds write occurs in the freerdp interruptible get line function. The issue arises when the buffer is reduced to 32 bytes while maintaining the length of a pre-filled...

PT-2026-111543

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

DEBIAN-CVE-2026-109256

FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR pngwritedata callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CFDIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash...

DEBIAN-CVE-2026-109257

FreeRDP before 3.32.0 contains a double-free vulnerability in nsccontextinitializeencode that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the...

CVE-2026-109256

FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR pngwritedata callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CFDIB image that triggers out-of-bounds memcpy during PNG conversion, causing a client crash...

CVE-2026-109257

FreeRDP before 3.32.0 contains a double-free vulnerability in nsccontextinitializeencode that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry to trigger allocation failure, crashing the...

DEBIAN-CVE-2026-109255

FreeRDP 3.0.0 before 3.32.0 contains an integer truncation vulnerability in licensecheckstreamlength that allows a malicious RDP server to trigger a heap buffer overflow on 32-bit clients. Attackers can send a crafted SERVERLICENSEREQUEST with a large scopeCount that bypasses length checks, causi...

DEBIAN-CVE-2026-109251

FreeRDP before 3.32.0 stores the server-supplied signed MS-RDPEGT geometry origin unchecked in an unsigned video surface coordinate, so the blit clamp in gdiVideoShowSurface wraps in 32-bit arithmetic and is skipped. A malicious RDP server can send a negative topLevelLeft to clients connecting wi...

DEBIAN-CVE-2026-109253

FreeRDP from 3.9.0 before 3.32.0 contains an out-of-bounds read vulnerability in the RDPEAR NDR scalar readers, which check value length before consuming alignment padding. Malicious or compromised RDP servers can send crafted unaligned RDPEAR payloads, such as CreateApReqAuthenticatorReq message...

DEBIAN-CVE-2026-109250

FreeRDP 3.0.0 before 3.32.0 contains a heap buffer overflow vulnerability in collectkeys that allows local attackers to write past the fixed 64-entry keys array during PKCS11 key enumeration. Attackers controlling smartcard tokens can present more than 64 public key objects across multiple slots ...

DEBIAN-CVE-2026-109252

FreeRDP from 3.9.0 before 3.32.0 contains a NULL pointer dereference vulnerability in the RDPEAR NDR reader that allows malicious servers to crash clients via truncated KERBRPCINTERNALNAME data. Attackers can send a CreateApReqAuthenticatorReq with NameCount of two or more ending before the Names...

DEBIAN-CVE-2026-109249

FreeRDP 3.0.0 before 3.32.0 contains a heap out-of-bounds read in freerdpassistanceparseallelementsof because it advances its parsing cursor without reducing the remaining length, letting the scan window exceed the decrypted ConnectionString2 buffer. Attackers can supply a crafted .msrcIncident...