CVE-2026-23531

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, in ClearCodec, when glyphData is present, cleardecompress calls freerdpimagecopynooverlap without validating the destination rectangle, allowing an out-of-bounds read/write via crafted RDPGFX surface updates...

CVE-2026-23530

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0,freerdpbitmapdecompressplanar does not validate nSrcWidth/nSrcHeight against planar-maxWidth/maxHeight before RLE decode. A malicious server can trigger a client‑side heap buffer overflow, causing a crash DoS...

CVE-2026-23530

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0,freerdpbitmapdecompressplanar does not validate nSrcWidth/nSrcHeight against planar-maxWidth/maxHeight before RLE decode. A malicious server can trigger a client‑side heap buffer overflow, causing a crash DoS...

FreeRDP security vulnerabilities

FreeRDP is an open-source RDP protocol implementation developed by the FreeRDP team. Versions of FreeRDP prior to 3.21.0 contained security vulnerabilities. These vulnerabilities stemmed from the cleardecompress function in ClearCodec, which did not validate the target rectangle, potentially...

Linux Distros Unpatched Vulnerability : CVE-2026-23530

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0,freerdpbitmapdecompressplanar does not validate nSrcWidth/nSrcHeight...

Linux Distros Unpatched Vulnerability : CVE-2026-23531

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, in ClearCodec, when glyphData is present, cleardecompress calls...

[SECURITY] Fedora 43 Update: freerdp-3.20.2-1.fc43

The xfreerdp & wlfreerdp Remote Desktop Protocol RDP clients from the FreeR DP project. xfreerdp & wlfreerdp can connect to RDP servers such as Microsoft Windows machines, xrdp and VirtualBox...

SUSE CVE-2026-22853

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR's NDR array reader does not perform bounds checking on the on-wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndrreaduint8Array. This vulnerabilit...

SUSE CVE-2026-22856

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race in the serial channel IRP thread tracking allows a heap use-after-free when one thread removes an entry from serial-IrpThreads while another reads it. This vulnerability is fixed in 3.20.1...

CVE-2026-22856

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race in the serial channel IRP thread tracking allows a heap use‑after‑free when one thread removes an entry from serial-IrpThreads while another reads it. This vulnerability is fixed in 3.20.1...

CVE-2026-22851

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread leads to a heap use-after-free. Specifically, an escaped pointer to sdl-primary SDLSurface is accessed after it has been...

UBUNTU-CVE-2026-22857

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap use-after-free occurs in irpthreadfunc because the IRP is freed by irp-Complete and then accessed again on the error path. This vulnerability is fixed in 3.20.1...

UBUNTU-CVE-2026-22851

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread leads to a heap use-after-free. Specifically, an escaped pointer to sdl-primary SDLSurface is accessed after it has been...

CVE-2026-22857

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap use-after-free occurs in irpthreadfunc because the IRP is freed by irp-Complete and then accessed again on the error path. This vulnerability is fixed in 3.20.1...

CVE-2026-22856

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race in the serial channel IRP thread tracking allows a heap use‑after‑free when one thread removes an entry from serial-IrpThreads while another reads it. This vulnerability is fixed in 3.20.1...

UBUNTU-CVE-2026-22853

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndrreaduint8Array. This vulnerabilit...

CVE-2026-22853

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, RDPEAR’s NDR array reader does not perform bounds checking on the on‑wire element count and can write past the heap buffer allocated from hints, causing a heap buffer overflow in ndrreaduint8Array. This vulnerabilit...

CVE-2026-22858

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, global-buffer-overflow was observed in FreeRDP's Base64 decoding path. The root cause appears to be implementation-defined char signedness: on Arm/AArch64 builds, plain char is treated as unsigned, so the guard c = ...

CVE-2026-22859

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSBINTERFACEDESCRIPTOR values and uses them as indices in libusbudevcompletemsconfigsetup, causing an out‑of‑bounds read. This vulnerability is...

CVE-2026-22859 FreeRDP has a heap-buffer-overflow in urb_select_configuration

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSBINTERFACEDESCRIPTOR values and uses them as indices in libusbudevcompletemsconfigsetup, causing an out‑of‑bounds read. This vulnerability is...