Unified Remote 3.9.0.2463 contains a remote code execution vulnerability that allows attackers to send crafted network packets to execute arbitrary co...
Description
Unified Remote 3.9.0.2463 contains a remote code execution vulnerability that allows attackers to send crafted network packets to execute arbitrary commands. Attackers can exploit the service by connecting to port 9512 and sending specially crafted packets to open a command prompt and download and execute malicious payloads.
AI Analyst Comment
Remediation
Update Unified Remote Multiple Products to the latest version. Monitor for exploitation attempts and review access logs.
Description Summary:
Unified Remote contains a remote code execution vulnerability where unauthenticated attackers can send crafted packets to port 9512 to execute arbitrary commands.
Executive Summary:
Unified Remote 3.9.0.2463 is vulnerable to unauthenticated remote code execution, allowing attackers to take full control of the host system.
Vulnerability Details
CVE-ID: CVE-2021-47891
Affected Software: Unified Intents AB Unified Remote
Affected Versions: 3.9.0.2463
Vulnerability: The application lacks proper authentication for critical functions (CWE-306). By sending specially crafted network packets to port 9512, an unauthenticated, remote attacker can trigger command execution on the underlying host.
Business Impact
This is a critical vulnerability that allows for complete system compromise, including the potential for data exfiltration, malware installation, and long-term persistence. With a CVSS score of 9.8, the ability for an unauthenticated attacker to execute arbitrary commands poses an immediate threat to the entire network segment where the software is deployed.
Remediation Plan
Immediate Action: Update Unified Remote to the latest available version provided by the vendor. If an update is not immediately available, disable the service or restrict network access to port 9512 to trusted internal segments only.
Proactive Monitoring: Monitor network traffic for unusual payloads targeting port 9512 and audit system logs for unexpected command execution or process creation.
Compensating Controls: Utilize a firewall to strictly control ingress traffic to the service port, ensuring only authorized management workstations can communicate with the application.
Exploitation Status
Public Exploit Available: Yes โ ExploitDB (ID 49587)
Analyst Notes: As of Jan 23, 2026, there is no confirmed active exploitation in the wild; however, per CISA's SSVC assessment a proof-of-concept exists, so exploitation risk should be treated as credible. The presence of a public exploit in ExploitDB significantly lowers the barrier for attackers to weaponize this flaw.
Analyst Recommendation
The presence of a public exploit combined with the ease of remote code execution makes this a high-urgency issue. Immediate remediation or network isolation is required to prevent potential compromise of systems running the affected version.