CVE-2021-44077
CriticalExploitedPublic exploitZoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution.
Published Nov 24, 2022 · Updated Oct 21, 2025 · Also known as TR-21-0971, TR-21-0981, TR-21-0997, TR-21-0999, TR-21-1008, TR-22-0010, TR-22-0011, TR-22-0018, TR-22-0028, TR-22-0029, TR-22-0032, TR-22-0041, TR-22-0042, TR-22-0044, TR-22-0071, TR-22-0072, TR-22-0103, TR-22-0107, TR-22-0112, TR-22-0121, TR-22-0124, TR-22-0703
Key Facts
Patch immediately- CVE-2021-44077 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Manageengine Servicedesk Plus (Zohocorp), Manageengine Servicedesk Plus Msp (Zohocorp), Manageengine Supportcenter Plus (Zohocorp).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 1, 2021. Public exploit code is available.
- EPSS estimates a 93% probability of exploitation in the next 30 days.
- Fixed versions are available, including Manageengine Servicedesk Plus 11.1, Manageengine Servicedesk Plus Msp 10.5, Manageengine Supportcenter Plus 11.0.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
93%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-44077 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution. This is related to /RestAPI URLs in a servlet, and ImportTechnicians in the Struts configuration.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Dec 1, 2021 | Dec 15, 2021 | Not reported |
| Industry KEV feed | Dec 1, 2021 | Dec 15, 2021 | Not reported |
| CIRCL KEV | Dec 1, 2021 | Dec 15, 2021 | Not reported |
| ENISA EUVD | Dec 1, 2021 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
73 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Manageengine Servicedesk PlusZohocorp | 11.1-11138, 11.1-11139, 11.1-11140, 11.1-11141, 11.1-11142, 11.1-11143, 11.1-11144, 11.1-11145 | 11.1 |
| Manageengine Servicedesk Plus MspZohocorp | 10.5-10500, 10.5-10501, 10.5-10502, 10.5-10503, 10.5-10504, 10.5-10505, 10.5-10506, 10.5-10507 | 10.5 |
| Manageengine Supportcenter PlusZohocorp | 11.0-11000, 11.0-11001, 11.0-11002, 11.0-11003, 11.0-11004, 11.0-11005, 11.0-11006, 11.0-11007 | 11.0 |
Patched Releases
Manageengine Servicedesk Plus
11.1
Manageengine Servicedesk Plus Msp
10.5
Manageengine Supportcenter Plus
11.0
Timeline
Added to CISA KEV
Dec 1, 2021
Added to Industry KEV feed
Dec 1, 2021
Added to CIRCL KEV
Dec 1, 2021
Added to ENISA EUVD
Dec 1, 2021
Publicly disclosed
Nov 24, 2022
Last updated
Oct 21, 2025
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisoryhttp://blog.talosintelligence.com/2022/01/adobe-acrobat-vuln-spotlight-.html
- advisoryhttps://blog.malwarebytes.com/exploits-and-vulnerabilities/2022/02/samba-patches-critical-vulnerability-that-allows-remote-code-execution-as-root/
- advisoryhttps://blog.malwarebytes.com/glossary/server-message-block-smb/
- advisoryhttps://blog.malwarebytes.com/malwarebytes-news/2020/05/how-cvss-works-characterizing-and-scoring-vulnerabilities/
- advisoryhttps://blog.qualys.com/vulnerabilities-threat-research/2022/01/11/microsoft-adobe-patch-tuesday-january-2022-microsoft-126-vulnerabilities-with-9-critical-adobe-41-vulnerabilities-22-critical
FAQ
Common Questions.
Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution.
Affected: Manageengine Servicedesk Plus (Zohocorp) versions 11.1-11138, 11.1-11139, 11.1-11140, 11.1-11141, 11.1-11142, 11.1-11143, 11.1-11144, 11.1-11145; Manageengine Servicedesk Plus Msp (Zohocorp) versions 10.5-10500, 10.5-10501, 10.5-10502, 10.5-10503, 10.5-10504, 10.5-10505, 10.5-10506, 10.5-10507; Manageengine Supportcenter Plus (Zohocorp) versions 11.0-11000, 11.0-11001, 11.0-11002, 11.0-11003, 11.0-11004, 11.0-11005, 11.0-11006, 11.0-11007. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Dec 1, 2021.
Yes. It was added on Dec 1, 2021 with a federal remediation due date of Dec 15, 2021.
Public exploit code is available.
Fixed versions are available, including Manageengine Servicedesk Plus 11.1, Manageengine Servicedesk Plus Msp 10.5, Manageengine Supportcenter Plus 11.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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