Improper Validation of Array Index Affecting freerdp3 package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.24% (14th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FREERDP3-20877288
  • published13 Oct 2026
  • disclosed12 Oct 2026

Introduced: 12 Oct 2026

NewCVE-2026-109251  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest freerdp3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream freerdp3 package and not the freerdp3 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

FreeRDP before 3.32.0 stores the server-supplied signed MS-RDPEGT geometry origin unchecked in an unsigned video surface coordinate, so the blit clamp in gdiVideoShowSurface() wraps in 32-bit arithmetic and is skipped. A malicious RDP server can send a negative topLevelLeft to clients connecting with /video, causing an out-of-bounds write of decoded H.264 picture data or a client abort.

CVSS Base Scores

version 3.1