CVE-2021-44526

Name: CVE-2021-44526
Creator: NVD / NIST
Published: 2021-12-23T15:15:07.7+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 3.19%

Last modified Jun 17, 2026

CVE-2021-44526 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Zoho ManageEngine ServiceDesk Plus before 12003 allows authentication bypass in certain admin configurations.. EPSS estimates a 3.19% chance of exploitation in the next 30 days.

Description

Zoho ManageEngine ServiceDesk Plus before 12003 allows authentication bypass in certain admin configurations.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

3.19%

86.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Zohocorp	Manageengine Servicedesk Plus	8.1	—
Zohocorp	Manageengine Servicedesk Plus	8.2	—
Zohocorp	Manageengine Servicedesk Plus	9.0	—
Zohocorp	Manageengine Servicedesk Plus	9.1	—
Zohocorp	Manageengine Servicedesk Plus	9.2	—
Zohocorp	Manageengine Servicedesk Plus	9.3	—
Zohocorp	Manageengine Servicedesk Plus	9.4	—
Zohocorp	Manageengine Servicedesk Plus	10.0	—
Zohocorp	Manageengine Servicedesk Plus	10.0.0	—
Zohocorp	Manageengine Servicedesk Plus	10.5	—
Zohocorp	Manageengine Servicedesk Plus	11.0	—
Zohocorp	Manageengine Servicedesk Plus	11.1	—
Zohocorp	Manageengine Servicedesk Plus	11.2	—
Zohocorp	Manageengine Servicedesk Plus	11.3	—
Zohocorp	Manageengine Servicedesk Plus	12.0	12000

References

https://www.manageengine.com/products/service-desk/on-premises/readme.html#12003Vendor Advisory
https://www.manageengine.com/products/service-desk/on-premises/readme.html#12003Vendor Advisory

Timeline

Published: Dec 23, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44526?

Zoho ManageEngine ServiceDesk Plus before 12003 allows authentication bypass in certain admin configurations.

How severe is CVE-2021-44526?

CVE-2021-44526 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 3.19% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44526?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44526?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST