CVE-2026-77542 in UID Enterprise Agent
Summary
by MITRE • 08/26/2026
A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UID Enterprise Agent to execute a Command Injection on the host device.
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Analysis
by VulDB Data Team • 08/26/2026
The discovery of an improper input validation flaw within the UID Enterprise Agent represents a significant security risk, particularly for organizations relying on this software for endpoint management or monitoring. This vulnerability stems from insufficient sanitization and verification mechanisms when processing user-supplied data or external inputs before they are passed to underlying system commands. In many enterprise environments, agents operate with elevated privileges to perform necessary administrative tasks such as file manipulation, service control, or configuration updates. When the application fails to strictly validate these inputs against a whitelist of expected characters or formats, it creates an opening for attackers to inject malicious command sequences that the operating system will subsequently execute.
From a technical perspective, this flaw aligns closely with CWE-94, which describes Improper Control of Generation of Code (Code Injection), and more specifically CWE-78, the OS Command Injection vulnerability. The root cause typically involves the concatenation of unsanitized input directly into shell commands or system calls without proper escaping. For instance, if an API endpoint or configuration interface accepts a filename or path string and passes it to a command-line interpreter like /bin/sh or cmd.exe without filtering for special characters such as semicolons, ampersands, or pipe symbols, an attacker can terminate the intended argument and append arbitrary commands. This allows the execution of any program installed on the host system with the same privileges as the UID Enterprise Agent process.
The operational impact of this vulnerability is severe due to the high privilege level required for exploitation. A malicious actor who has already gained access to the network segment where these agents reside, or who possesses compromised credentials that grant them administrative rights within the management console, can leverage this flaw to achieve full remote code execution on the affected host devices. This effectively compromises the integrity and confidentiality of the entire system. The attacker could install backdoors, exfiltrate sensitive data, pivot to other internal systems, or deploy ransomware. Since enterprise agents often have broad access to local resources, successful exploitation can lead to a complete takeover of critical infrastructure components, disrupting business operations and potentially leading to significant financial and reputational damage.
In the context of cyber threat intelligence frameworks such as MITRE ATT&CK, this vulnerability facilitates techniques associated with Initial Access via Valid Accounts or Privilege Escalation if lower-level access is initially obtained. It also enables Command and Control activities through Remote Services like SMB/Windows Admin Shares or System Network Discovery depending on what commands are injected. The ability to execute arbitrary code means the attacker can move laterally across the network, escalating their position from a single compromised endpoint to a broader domain compromise if not contained promptly.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Organizations should immediately apply vendor-provided patches or updates that address this specific input validation issue in the UID Enterprise Agent software. If patching is not immediately feasible, network segmentation should be enforced to restrict communication between untrusted networks and systems running the agent. Additionally, implementing strict firewall rules can limit exposure to only necessary ports and protocols. From a development standpoint, future iterations of such agents must adopt secure coding practices that include rigorous input validation using allow-lists rather than deny-lists, parameterized queries where applicable, and avoiding direct shell execution in favor of safer API calls or libraries that handle argument parsing securely. Regular security audits and penetration testing should also be conducted to identify similar flaws before they can be exploited by adversaries.