Heap-based Buffer Overflow Affecting freerdp3 package, versions <3.32.1+dfsg-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.48% (41st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FREERDP3-21403715
  • published22 Oct 2026
  • disclosed21 Oct 2026

Introduced: 21 Oct 2026

NewCVE-2026-114045  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade Debian:unstable freerdp3 to version 3.32.1+dfsg-1 or higher.

NVD Description

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

FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.

CVSS Base Scores

version 3.1