CVE-2026-56793 in OpenManage Server Administrator
Summary
by MITRE • 08/07/2026
Dell OpenManage Server Administrator, versions prior to 11.1.0.2, contains an Improper Authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Unauthorized access.
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Analysis
by VulDB Data Team • 08/07/2026
The vulnerability under discussion represents a critical weakness in Dell OpenManage Server Administrator software affecting versions before 11.1.0.2, classified as improper authentication according to the Common Weakness Enumeration framework. This flaw creates a pathway for malicious actors to bypass legitimate authentication mechanisms and gain unauthorized access to managed server environments. The vulnerability exists within the remote management interface of the software, which is designed to provide centralized administration capabilities for Dell PowerEdge servers and other hardware components.
The technical nature of this authentication flaw allows an unauthenticated attacker to exploit the system without requiring valid credentials or prior access rights. This weakness typically manifests through insufficient validation of user credentials or improper session management within the web interface components. The vulnerability enables attackers to potentially execute arbitrary commands, access sensitive configuration data, or manipulate server settings through the remote administration portal. Such weaknesses often stem from inadequate input validation, weak cryptographic implementations, or flawed authentication protocols that fail to properly verify user identities.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can lead to complete compromise of managed server environments. Attackers could leverage this weakness to establish persistent access points within enterprise networks, potentially escalating privileges to administrative levels and gaining visibility into critical infrastructure components. The remote nature of the attack vector means that adversaries do not require physical access or network proximity to exploit the vulnerability, making it particularly dangerous for organizations with distributed server deployments or remote management capabilities.
Organizations utilizing affected versions of Dell OpenManage Server Administrator should prioritize immediate remediation through official software updates and patches provided by Dell. Network segmentation strategies and firewall rules should be implemented to restrict access to the management interface from untrusted networks. Regular security audits and monitoring of authentication logs can help detect potential exploitation attempts. The vulnerability aligns with several ATT&CK framework techniques including credential access methods and privilege escalation, highlighting the need for comprehensive defensive measures. Additionally, implementing multi-factor authentication mechanisms and maintaining strict access control policies can significantly reduce the attack surface and mitigate potential exploitation scenarios.