Bug 2430877 (CVE-2026-23530) - CVE-2026-23530 freerdp: FreeRDP: Heap buffer overflow leading to denial of service and potential code execution from a malicious server.
Summary: CVE-2026-23530 freerdp: FreeRDP: Heap buffer overflow leading to denial of se...
Keywords:
Status: NEW
Alias: CVE-2026-23530
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2430915 2430917 2430919 2430916 2430918
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-19 18:01 UTC by OSIDB Bzimport
Modified: 2026-01-19 18:37 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-01-19 18:01:33 UTC 
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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