CVE-2021-40539

Known Exploited Public Exploit

Description

Zoho ManageEngine ADSelfService Plus version 6113 and prior is vulnerable to REST API authentication bypass with resultant remote code execution.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.42% Top 5%
KEV Since 
Vendor Advisory manageengine.com Vendor Advisory manageengine.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.manageengine.com vendor advisory
https://www.manageengine.com/products/self-service-password/kb/how-to-fix-authentication-bypass-vulnerability-in-REST-API.html patch vendor advisory
http://packetstormsecurity.com/files/165085/ManageEngine-ADSelfService-Plus-Authentication-Bypass-Code-Execution.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-40539?
CVE-2021-40539 has been scored as a critical severity vulnerability.
How to fix CVE-2021-40539?
To fix CVE-2021-40539, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-40539 being actively exploited in the wild?
It is confirmed that CVE-2021-40539 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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