CVE-2026-83688

Summary

A heap-based buffer overflow in Remote Desktop Client allows remote attackers to execute arbitrary code on affected systems. This vulnerability stems from improper bounds checking when processing remote desktop connections, potentially enabling attackers to gain full system control without authentication.

Exploitability

Exploitation is moderately difficult and requires a remote attacker to establish a malicious RDP connection with a specially crafted payload, but no user interaction is needed once the connection is established.

Blast radius

If exploited, this vulnerability could allow attackers to compromise any system running the vulnerable Remote Desktop Client, potentially leading to full network infiltration and lateral movement across enterprise environments.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Disable Remote Desktop Client functionality or upgrade to version 2.590 or later if available.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.