CVE-2018-20177: rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer...

Security readout for executives and security teams

This issue affects rdesktop RDP clients up to and including 1.8.3. A malicious or compromised RDP server could trigger memory corruption in the client, with possible remote code execution. Business risk is highest where staff or automated systems use old rdesktop builds to connect to third-party or untrusted RDP hosts. Exposure is likely limited to systems with rdesktop installed, especially versions through 1.8.3. Risk increases when users initiate RDP sessions to systems they do not control. The bundle does not identify other affected products or downstream package versions beyond referenced distribution advisories. Prioritize remediation if rdesktop exists in engineering, operations, or support environments. The issue is old but potentially serious because exploitation targets the client when connecting to a hostile server, a pattern that can bypass assumptions focused only on inbound RDP exposure. Mitigation focus: Upgrade rdesktop using vendor or distribution security guidance.; Prioritize systems connecting to untrusted or third-party RDP servers.; Remove rdesktop where it is no longer 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.