Heap-based Buffer Overflow Affecting freerdp/freerdp package, versions [,3.30.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.4% (32nd percentile)

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  • Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-21192677
  • published18 Oct 2026
  • disclosed11 Aug 2026
  • creditUnknown

Introduced: 11 Aug 2026

CVE-2026-73242  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade freerdp/freerdp to version 3.30.0 or higher.

Overview

Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the kerberos_DecryptMessage function when the peer-controlled GSS Wrap-token EC field is not properly bounded before use with RRC in IOV pointer offsets. An attacker can cause out-of-bounds reads and in-place writes by sending specially crafted Kerberos tokens during CredSSP/NLA authentication.

CVSS Base Scores

version 4.0
version 3.1