CVE-2026-69159

MEDIUM 5.4

FreeRDP: Out-of-Bounds Read in Planar RLE Decoder (planar_decompress_plane_rle / planar_decompress_plane_rle_only)

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.29.0, planar_decompress_plane_rle and planar_decompress_plane_rle_only in libfreerdp/codec/planar.c verify that a control byte exists but do not verify that the source buffer contains the zero to fifteen raw bytes declared by that control byte. A malicious RDP server can send a truncated planar bitmap or surface update whose final control byte claims additional raw bytes, causing the decoder to read beyond pSrcData while processing a color plane. This can crash the client and may disclose adjacent memory. This issue is fixed in version 3.29.0.

CWE	CWE-125
Vendor	freerdp
Product	freerdp
Published	Aug 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Affected Versions

FreeRDP / FreeRDP

< 3.29.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qrxx-7g3c-j6w3 github.com: https://github.com/FreeRDP/FreeRDP/pull/13016 github.com: https://github.com/FreeRDP/FreeRDP/commit/75a1ec61d444179ea64a4ec0835214cb9c4f7c18 github.com: https://github.com/FreeRDP/FreeRDP/releases/tag/3.29.0