CVE-2018-20179: rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer...

Security readout for executives and security teams

This issue affects rdesktop, an RDP client, not an RDP server. A malicious or compromised RDP server could trigger memory corruption in vulnerable rdesktop clients, with possible remote code execution. Organizations using old rdesktop builds should treat this as a high-priority endpoint and administrator-workstation risk. Exposure is limited to systems where rdesktop up to and including v1.8.3 is installed or packaged into workstation images, admin tooling, jump hosts, or Linux distributions that shipped vulnerable rdesktop versions. Prioritize remediation where rdesktop is used by administrators or operators. The issue is old and not KEV-listed in the provided bundle, but client-side RDP code execution risk can create a meaningful path into privileged endpoints. Mitigation focus: Upgrade rdesktop using the relevant vendor security advisory or package update.; Prioritize administrator workstations, jump hosts, and systems used for remote access.; Remove vulnerable rdesktop where it is no longer operationally required..

Prepared

Jun 6, 2026, 21:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.