Out-of-bounds Read Affecting rdesktop package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.39% (33rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-RDESKTOP-21279977
  • published20 Oct 2026
  • disclosed19 Oct 2026

Introduced: 19 Oct 2026

NewCVE-2026-112277  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest rdesktop.

NVD Description

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

rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by sending malformed 32 bpp compressed bitmaps. Attackers can declare a large bitmap geometry with a short compressed body in bitmap update PDUs or bitmap cache orders, causing unbounded reads past the receive buffer and denial of service.

CVSS Base Scores

version 3.1