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CVE-2026-69159— FreeRDP: Out-of-Bounds Read in Planar RLE Decoder (planar_decompress_plane_rle / planar_decompress_plane_rle_only)

CVSS 5.4 · Medium EPSS 0.27% · P19

Possible ATT&CK Techniques 1AI

T1210 · Exploitation of Remote Services

Affected Version Matrix 1

VendorProductVersion RangeStatus
FreeRDPFreeRDP< 3.29.0affected
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I. Basic Information for CVE-2026-69159

Vulnerability Information
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Vulnerability Title
FreeRDP: Out-of-Bounds Read in Planar RLE Decoder (planar_decompress_plane_rle / planar_decompress_plane_rle_only)
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
FreeRDP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRDP是FreeRDP组织开源的一款远程桌面协议(RDP)的实现。 FreeRDP 3.29.0之前版本存在缓冲区错误漏洞，该漏洞源于planar_decompress_plane_rle和planar_decompress_plane_rle_only函数未验证源缓冲区中包含控制字节声明的原始字节，可能造成客户端崩溃并泄露相邻内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
FreeRDPFreeRDP < 3.29.0 -

II. Public POCs for CVE-2026-69159

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III. Intelligence Information for CVE-2026-69159

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Patches & Fixes for CVE-2026-69159 (2)

Vendor Advisories for CVE-2026-69159 (1)

Vendor Pages for CVE-2026-69159 (1)

Same Patch Batch · FreeRDP · 2026-08-19 · 10 CVEs total

CVE-2026-551918.7 HIGHFreeRDP: Heap-buffer-overflow write in AVC444 YUV buffer allocation
CVE-2026-551948.7 HIGHFreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint
CVE-2026-551938.7 HIGHFreeRDP: Heap-buffer-overflow write in TS Gateway RPC fragment receive due to uncapped bin
CVE-2026-636337.7 HIGHFreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the
CVE-2026-551927.2 HIGHFreeRDP: Out-of-bounds read in H.264 YUV-to-RGB conversion due to decoder/surface dimensio
CVE-2026-636527.1 HIGHFreeRDP: Double-free of `client_formats` in the rdpsnd server channel on a malformed Clien
CVE-2026-631176.5 MEDIUMFreeRDP: Denial of service through ADPCM frame size calculation
CVE-2026-556486.1 MEDIUMFreeRDP: Integer Overflow in `freerdp_image_copy_from_icon_data` Bypasses Bounds Check
CVE-2026-555645.4 MEDIUMFreeRDP: Out-of-bounds read in glyph_cache_get via crafted glyph fragments

IV. Related Vulnerabilities

Same product: FreeRDP
Same vendor: FreeRDP
Same weakness: CWE-125

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