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CVE-2026-67290— FreeRDP before 3.29.0 Heap Out-of-Bounds Read via TSMF

Quick assessment

Affected

FreeRDP FreeRDP

Exploitation

Public or AI PoC available; prioritize validation

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FreeRDP是FreeRDP团队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TSMF FFmpeg解码器在解析AVC1 MPEG2VIDEOINFO媒体类型时ExtraData不足，导致堆越界读取，攻击者可发送恶意媒体格式数据触发崩溃。

CVSS 7.5 · High EPSS 0.62% · P50 Updated Aug 04, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

Vendor	Product	Version Range	Status
FreeRDP	FreeRDP	`< 3.29.0`	affected
		`3.29.0`	unaffected

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I. Basic Information for CVE-2026-67290

Vulnerability Information

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Vulnerability Title

FreeRDP before 3.29.0 Heap Out-of-Bounds Read via TSMF

Source: CVE Program / CVE List V5

Vulnerability Description

FreeRDP before 3.29.0 contains a heap out-of-bounds read vulnerability in the TSMF FFmpeg decoder when parsing AVC1 MPEG2VIDEOINFO media types with insufficient ExtraData. Attackers can send malformed media format data from a server to trigger a crash by reading fixed offsets without validating source buffer length.

Source: CVE Program / CVE List V5

CVSS Information

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

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

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

Vendor	Product	Affected Versions	CPE	Subscribe
FreeRDP	FreeRDP	0 ~ 3.29.0	-

II. Public POCs for CVE-2026-67290

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-67290

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Patches & Fixes for CVE-2026-67290 (1)

🔗 Merge pull request #13027 from akallabeth/resource-limits · FreeRDP/FreeRDP@8d3b860 · GitHub Read full article patch

Vendor Advisories for CVE-2026-67290 (2)

🔗 FreeRDP TSMF AVC1/MPEG2VIDEOINFO short ExtraData causes heap out-of-bounds read · Advisory · FreeRDP/FreeRDP · GitHub Read full article vendor-advisory
🔗 FreeRDP before 3.29.0 Heap Out-of-Bounds Read via TSMF | Advisories | VulnCheck third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-67290

Same Patch Batch · FreeRDP · 2026-08-01 · 21 CVEs total

CVE-2026-66402	9.8 CRITICAL	FreeRDP before 3.29.0 TLS Certificate Identity Validation Bypass
CVE-2026-67289	9.8 CRITICAL	FreeRDP before 3.29.0 HTTP Proxy Request Injection via Redirection
CVE-2026-67305	9.4 CRITICAL	FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr
CVE-2026-67299	7.5 HIGH	FreeRDP before 3.29.0 Use-After-Free via WindowIcon async message
CVE-2026-67304	7.5 HIGH	FreeRDP before 3.29.0 NULL Dereference via smartcard cleanup
CVE-2026-67297	7.5 HIGH	FreeRDP before 3.29.0 Resource Exhaustion via chunked HTTP response
CVE-2026-67301	7.5 HIGH	FreeRDP before 3.29.0 Out-of-bounds Read via Polygon async message-proxy
CVE-2026-67296	7.5 HIGH	FreeRDP before 3.29.0 Denial of Service via RDPEI PDU
CVE-2026-67291	7.5 HIGH	FreeRDP before 3.29.0 Heap Out-of-Bounds Read via GLYPH_FRAGMENT_ADD
CVE-2026-67300	7.5 HIGH	FreeRDP before 3.29.0 Use-After-Free via async message proxy
CVE-2026-67288	7.5 HIGH	FreeRDP before 3.29.0 Denial of Service via smartcard cache
CVE-2026-67298	7.5 HIGH	FreeRDP 3.28.0 Heap Buffer Overflow via RAIL orderLength Underflow
CVE-2026-67292	6.5 MEDIUM	FreeRDP before 3.29.0 WebSocket Ping Buffer Over-disclosure
CVE-2026-67295	6.3 MEDIUM	FreeRDP before 3.29.0 Path Traversal via drive redirection
CVE-2026-67294	5.9 MEDIUM	FreeRDP before 3.29.0 TLS Certificate EKU Bypass
CVE-2026-67306	5.4 MEDIUM	FreeRDP before 3.29.0 Out-of-Bounds Read via Planar RLE
CVE-2026-67303	4.3 MEDIUM	FreeRDP before 3.29.0 Denial of Service via serial DeviceControl
CVE-2026-67302	4.3 MEDIUM	FreeRDP rdpecam StartStreamsRequest divide-by-zero denial of service
CVE-2026-67293	4.2 MEDIUM	FreeRDP before 3.29.0 Improper Certificate Hostname Validation
CVE-2026-66401	2.1 LOW	FreeRDP before 3.29.0 Out-of-Bounds Read via UVC H.264

IV. Related Vulnerabilities

Same product: FreeRDP

Same vendor: FreeRDP

Same weakness: CWE-125