CVE-2023-26601 in ServiceDesk Plus
Summary
by MITRE • 03/07/2023
Zoho ManageEngine ServiceDesk Plus through 14104, Asset Explorer through 6987, ServiceDesk Plus MSP before 14000, and Support Center Plus before 14000 allow Denial-of-Service (DoS).
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Analysis
by VulDB Data Team • 11/10/2025
The vulnerability identified as CVE-2023-26601 affects multiple Zoho ManageEngine products including ServiceDesk Plus, Asset Explorer, ServiceDesk Plus MSP, and Support Center Plus across various versions. This issue represents a critical denial-of-service weakness that could potentially disrupt business operations and compromise system availability. The affected versions span across several major releases, indicating this is not a recent introduction but rather a persistent flaw within the product line. Organizations utilizing these management platforms may be exposed to operational disruptions that could impact their service delivery and IT infrastructure management capabilities.
The technical flaw manifests as a vulnerability that allows unauthorized users to execute denial-of-service attacks against the affected systems. This type of vulnerability typically involves the exploitation of input validation weaknesses, resource exhaustion mechanisms, or improper error handling within the application's processing logic. The vulnerability can be leveraged by attackers to consume system resources, cause application crashes, or render services unavailable to legitimate users. Given that these are enterprise management platforms handling critical business data and processes, the impact of such DoS conditions can extend beyond simple service interruption to include significant business disruption and potential financial losses.
From an operational perspective, the implications of this vulnerability are substantial for organizations relying on Zoho ManageEngine solutions. The denial-of-service conditions could affect help desk operations, asset management processes, and support ticket handling capabilities. Attackers exploiting this vulnerability could systematically disrupt service delivery, causing cascading effects throughout an organization's IT operations. The vulnerability's presence across multiple product variants suggests that organizations may have multiple attack vectors to defend against, requiring comprehensive security assessments and patch management strategies. This type of vulnerability aligns with CWE-400 which categorizes issues related to resource exhaustion and improper error handling that can lead to system unavailability.
The attack surface for this vulnerability is particularly concerning given the widespread adoption of ManageEngine products in enterprise environments. The DoS conditions can be triggered through various attack vectors including malformed requests, excessive resource consumption, or exploitation of protocol-level weaknesses. Organizations should consider implementing network-level protections, monitoring for unusual traffic patterns, and establishing incident response procedures to address potential exploitation attempts. The vulnerability demonstrates the importance of maintaining up-to-date security patches and implementing defense-in-depth strategies. From an ATT&CK framework perspective, this vulnerability could be categorized under techniques related to service disruption and availability attacks, potentially enabling further exploitation through subsequent attack phases.
Organizations should prioritize immediate patching of affected systems and implement network segmentation to limit potential attack impact. Security monitoring should be enhanced to detect abnormal resource consumption patterns and unusual access attempts. The vulnerability underscores the need for comprehensive vulnerability management programs that include regular security assessments, penetration testing, and continuous monitoring of third-party software components. Proper input validation and resource limiting mechanisms should be implemented to prevent exploitation attempts and maintain system stability. Additionally, organizations should develop and maintain incident response plans specifically addressing denial-of-service scenarios to ensure rapid recovery and minimal business impact.