CVE-2026-23532

A flaw was found in FreeRDP. A malicious server can exploit a client-side heap buffer overflow vulnerability in the gdiSurfaceToSurface path. This vulnerability, caused by a mismatch in memory handling, can lead to a crash Denial of Service of the client application. Furthermore, it carries a ris...

CVE-2026-23884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23732

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts cbData/remaining length and never validates against the minimum size implied by cx/cy. A malicious server can trigger a client‑side global buffer overflow, causing a crash DoS. Versi...

CVE-2026-23533

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the RDPGFX ClearCodec decode path when maliciously crafted residual data causes out-of-bounds writes during color output. A malicious server can trigger a...

CVE-2026-23534

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the ClearCodec bands decode path when crafted band coordinates allow writes past the end of the destination surface buffer. A malicious server can trigger a...

CVE-2026-23534

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the ClearCodec bands decode path when crafted band coordinates allow writes past the end of the destination surface buffer. A malicious server can trigger a...

UBUNTU-CVE-2026-23533

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the RDPGFX ClearCodec decode path when maliciously crafted residual data causes out-of-bounds writes during color output. A malicious server can trigger a...

UBUNTU-CVE-2026-23883

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, xfPointerNew frees cursorPixels on failure, then pointerfree calls xfPointerFree and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

UBUNTU-CVE-2026-23534

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the ClearCodec bands decode path when crafted band coordinates allow writes past the end of the destination surface buffer. A malicious server can trigger a...

CVE-2026-23533

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the RDPGFX ClearCodec decode path when maliciously crafted residual data causes out-of-bounds writes during color output. A malicious server can trigger a...

CVE-2026-23732

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, FastGlyph parsing trusts cbData/remaining length and never validates against the minimum size implied by cx/cy. A malicious server can trigger a client‑side global buffer overflow, causing a crash DoS. Versi...

CVE-2026-23883

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, xfPointerNew frees cursorPixels on failure, then pointerfree calls xfPointerFree and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

UBUNTU-CVE-2026-23884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23884

Summary: CVE-2026-23884 affects FreeRDP prior to 3.21.0, where offscreen bitmap deletion can leave gdi->drawing pointing to freed memory, enabling a client-side use-after-free that may crash the client (DoS) and cause heap corruption depending on allocator/heap layout. The issue is addressed i...

CVE-2026-23884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23884 Heap-use-after-free in gdi_set_bounds

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23884

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23884 Heap-use-after-free in gdi_set_bounds

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, offscreen bitmap deletion leaves gdi-drawing pointing to freed memory, causing UAF when related update packets arrive. A malicious server can trigger a client‑side use after free, causing a crash DoS and...

CVE-2026-23883

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, xfPointerNew frees cursorPixels on failure, then pointerfree calls xfPointerFree and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash DoS and...