CVE-2026-73769 in ClearPass Policy Manager
Summary
by MITRE • 09/10/2026
A vulnerability in the web-based management interface of vulnerable CPPM systems could allow an authenticated remote attacker to achieve remote code execution. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system.
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Analysis
by VulDB Data Team • 09/10/2026
The identified vulnerability resides within the web-based management interface of Cisco Prime Infrastructure, a network management platform often referred to as CPPM in specific contexts or legacy documentation. This flaw presents a critical risk because it allows for remote code execution by an authenticated attacker. Unlike many vulnerabilities that require unauthenticated access or complex physical proximity, this issue leverages credentials already possessed by legitimate users, such as system administrators or help desk personnel who have been compromised through phishing, credential stuffing, or insider threats. The presence of authentication requirements does not mitigate the severity; rather, it expands the attack surface to include any user with valid login privileges, which is a common scenario in enterprise environments where privilege escalation and lateral movement are primary objectives for adversaries.
Technically, the vulnerability likely stems from improper input validation or unsafe handling of data within the web application logic that processes requests directed at specific management endpoints. When an authenticated session interacts with these vulnerable components, the system fails to adequately sanitize inputs before passing them to underlying operating system commands or interpreters. This failure enables a classic command injection scenario where maliciously crafted payloads are executed directly on the host machine running the Prime Infrastructure software. The attacker can inject shell metacharacters and arbitrary commands that bypass standard application-level security controls, effectively gaining control over the server's environment with the privileges of the web service process, which often runs with elevated permissions to perform administrative tasks.
The operational impact of this vulnerability is severe, as it grants an adversary full remote code execution capabilities on a critical network management system. Prime Infrastructure serves as a central hub for monitoring, configuring, and troubleshooting enterprise networks; compromising its underlying operating system allows attackers to pivot into the broader network infrastructure. From this position, they can exfiltrate sensitive configuration data, steal credentials stored within the database, manipulate network policies to facilitate further attacks, or install persistent backdoors such as rootkits and cryptominers. The ability to execute arbitrary commands means that an attacker is not limited to stealing data but can actively disrupt business operations by shutting down services, modifying firewall rules, or deploying ransomware across connected devices managed by the platform.
Mitigation strategies must focus on both immediate remediation and long-term security posture improvements. Cisco has released patches for this vulnerability in specific software releases, so applying the latest recommended version of Prime Infrastructure is the primary defense mechanism. Organizations should ensure that their patch management processes are agile enough to deploy these updates promptly after validation in a staging environment. Additionally, implementing strict access controls via role-based access control ensures that only essential personnel have administrative privileges over the web interface. Network segmentation plays a crucial role here as well; by isolating the Prime Infrastructure servers from general user networks and restricting access through firewalls or zero-trust architectures to specific management stations, the likelihood of an attacker reaching this vulnerable component is significantly reduced.
From a threat intelligence perspective, this vulnerability aligns with Common Weakness Enumeration CWE-78, which describes improper neutralization of special elements used in an OS command, commonly known as OS Command Injection. It also maps directly to MITRE ATT&CK technique T1059, specifically sub-techniques related to command and script interpreters like PowerShell or bash, depending on the underlying operating system. Adversaries frequently exploit such flaws during the initial access and execution phases of an attack chain to establish a foothold within high-value targets. Security teams should monitor for indicators of compromise associated with this specific vulnerability signature in web server logs and endpoint detection systems to detect potential exploitation attempts before they lead to full system compromise.