Zoho ManageEngine ADSelfService Plus before 6218 allows anyone to conduct a Denial-of-Service attack via the Mobile App Authentication API.

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• zohocorp manageengine adselfservice plus4.5
• zohocorp manageengine adselfservice plus5.0
• zohocorp manageengine adselfservice plus5.0.6
• zohocorp manageengine adselfservice plus5.1
• zohocorp manageengine adselfservice plus5.2
• zohocorp manageengine adselfservice plus5.3
• zohocorp manageengine adselfservice plus5.4
• zohocorp manageengine adselfservice plus5.5
• zohocorp manageengine adselfservice plus5.6
• zohocorp manageengine adselfservice plus5.7
• zohocorp manageengine adselfservice plus5.8
• zohocorp manageengine adselfservice plus6.0
• zohocorp manageengine adselfservice plus6.1
• zohocorp manageengine adselfservice plus6.2

Other highest-scoring records for the same primary product.

• CVE-2021-40539Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execuKEV
  99Now
• CVE-2022-28810Zoho ManageEngine ADSelfService Plus before build 6122 allows a remote authenticated administrator to execute arbitrary operating OS commandKEV
  78This week
• CVE-2021-28958Zoho ManageEngine ADSelfService Plus through 6101 is vulnerable to unauthenticated Remote Code Execution while changing the password.
  61This week
• CVE-2021-33256A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unaut
  59Plan
• CVE-2025-3833Zohocorp ManageEngine ADSelfService Plus versions 6513 and prior are vulnerable to authenticated SQL injection in the MFA reports.
  46Plan
• CVE-2020-11518Zoho ManageEngine ADSelfService Plus before 5815 allows unauthenticated remote code execution.
  45Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1function expand(node) {2  return node.children.map(expand);3}

1const MAX_DEPTH = 32;2function expand(node, depth = 0) {3  if (depth > MAX_DEPTH) throw new Error("too deep");4  return node.children.map((c) => expand(c, depth + 1));5}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.