CVE-2026-29775HIGH 8.2EPSS p22.3%

CVE-2026-29775CVE-2026-29775

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a client-side heap out-of-bounds read/write occurs in FreeRDP's bitmap cache subsystem due to an off-by-one boundary check in bitmap_cache_put. A malicious server can send a CACHE_BITMAP_ORDER (Rev1) with cacheId equal to maxCells, bypassing the guard and accessing cells[] one element past the allocated array. This vulnerability is fixed in 3.24.0.

Scoring

CVSS 3.18.2 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS0.31% probability of exploitation · percentile 22.3% · 2026-06-18T12:00:27Z
Published2026-03-13
Last modified2026-03-17

Underlying weaknesses· 1

CWE-787

References

  1. https://github.com/FreeRDP/FreeRDP/commit/ffad58fd2b329efd81a3239e9d7e3c927b8e503f
  2. https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj
  3. https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h666-rfw3-jhvj

1

TypeTargetConfidenceTier
WeaknessOut-of-bounds Writecwe-7870%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.