Security Advisory

CVE-2026-23530

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-01-19 16:58:46

Last updated 2026-07-15 01:18:34

Assigner GitHub_M

CVSS score 7.7

State PUBLISHED

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0,`freerdp_bitmap_decompress_planar` 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) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.

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