Out-of-bounds Write Affecting freerdp/freerdp package, versions [,3.23.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (14th percentile)

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  • Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-15363359
  • published27 Feb 2026
  • disclosed26 Feb 2026
  • creditPedro Cavalcante

Introduced: 26 Feb 2026

NewCVE-2026-26955  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade freerdp/freerdp to version 3.23.0 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Write via the gdi_SurfaceCommand_ClearCodec() handler. An attacker can achieve remote code execution by sending a specially crafted RDPGFX ClearCodec surface command with an out-of-bounds destination rectangle, which leads to a heap buffer overflow and corruption of adjacent memory structures, ultimately allowing control over an indirect function pointer call.

References

CVSS Base Scores

version 4.0
version 3.1