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Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package freerdp-libs  (opens in a new tab)

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EPSS
0.53% (44th percentile)

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  • Snyk IDSNYK-ALMALINUX10-FREERDPLIBS-15263506
  • published11 Feb 2026
  • disclosed5 Feb 2026
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Introduced: 5 Feb 2026

CVE-2026-23530  (opens in a new tab)
CWE-122  (opens in a new tab)

Amendment

The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp-libs package and not the freerdp-libs package as distributed by AlmaLinux.

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.

References