CVE-2021-44077

CRITICAL KEV NUCLEI

ManageEngine ServiceDesk Plus CVE-2021-44077

Title source: metasploit

Exploitation Summary

CVE-2021-44077 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added December 1, 2021. EIP tracks 3 public exploits from researchers including horizon3ai, pizza-power, wvu, Y4er, including a Metasploit module exploits/windows/http/manageengine_servicedesk_plus_cve_2021_44077. A Nuclei detection template is also available.

AI-analyzed exploit summary This is a functional exploit for CVE-2021-44077, a pre-authentication RCE vulnerability in ManageEngine ServiceDesk Plus. It uploads an executable via an unauthenticated file upload endpoint and triggers execution via a separate endpoint.

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.

Exploits (3)

nomisec WORKING POC 35 stars

by horizon3ai · remote

https://github.com/horizon3ai/CVE-2021-44077

View Code ZIP pw:eip

This is a functional exploit for CVE-2021-44077, a pre-authentication RCE vulnerability in ManageEngine ServiceDesk Plus. It uploads an executable via an unauthenticated file upload endpoint and triggers execution via a separate endpoint.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Trivial

Reliability

Reliable

Target: ManageEngine ServiceDesk Plus < 11306

No auth needed

Prerequisites: Network access to the target · A compiled executable payload

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1203 - Exploitation for Client Execution

devstral-2 · analyzed Feb 16, 2026 Full analysis →

nomisec WORKING POC 2 stars

by pizza-power · remote

https://github.com/pizza-power/Golang-CVE-2021-44077-POC

View Code ZIP pw:eip

This is a Golang-based PoC for CVE-2021-44077, an unauthenticated RCE vulnerability in Zoho ManageEngine ServiceDesk Plus < 11306. The exploit uploads a malicious file via an unauthenticated endpoint and triggers execution via a separate endpoint.

Classification

Working Poc 95%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: Zoho ManageEngine ServiceDesk Plus < 11306

No auth needed

Prerequisites: Network access to the target · A malicious executable file

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1203 - Exploitation for Client Execution

devstral-2 · analyzed Feb 16, 2026 Full analysis →

metasploit WORKING POC EXCELLENT

by wvu, Y4er · rubypocwin

https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/manageengine_servicedesk_plus_cve_2021_44077.rb

View Code ZIP pw:eip

This Metasploit module exploits CVE-2021-44077, an unauthenticated RCE vulnerability in ManageEngine ServiceDesk Plus, by uploading a malicious EXE (msiexec.exe) and executing it as SYSTEM via an authentication bypass and file upload flaw.

Classification

Working Poc 100%

Attack Type

Rce

Complexity

Moderate

Reliability

Reliable

Target: ManageEngine ServiceDesk Plus (versions up to 11305)

No auth needed

Prerequisites: Network access to target · ServiceDesk Plus vulnerable endpoint exposed

MITRE ATT&CK

T1190 - Exploit Public-Facing Application T1203 - Exploitation for Client Execution T1059 - Command and Scripting Interpreter

devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Zoho ManageEngine ServiceDesk Plus - Remote Code Execution

CRITICALby Adam Crosser,gy741

Shodan: http.title:"manageengine servicedesk plus"

FOFA: title="manageengine servicedesk plus"

References (6)

Core 6

Core References

Vendor Advisory x_refsource_misc

https://pitstop.manageengine.com/portal/en/community/topic/security-advisory-for-cve-2021-44077-unauthenticated-rce-vulnerability-in-servicedesk-plus-versions-up-to-11305-22-11-2021

Patch, Vendor Advisory x_refsource_misc

https://pitstop.manageengine.com/portal/en/community/topic/security-advisory-authentication-bypass-vulnerability-in-servicedesk-plus-versions-11138-and-above

Vendor Advisory x_refsource_misc

https://pitstop.manageengine.com/portal/en/community/topic/security-advisory-for-cve-2021-44077-unauthenticated-rce-vulnerability-in-servicedesk-plus-msp-versions-10527-till-10529

Vendor Advisory x_refsource_misc

https://pitstop.manageengine.com/portal/en/community/topic/security-advisory-for-cve-2021-44077-unauthenticated-rce-vulnerability-in-supportcenter-plus-versions-11012-and-11013

Exploit, Third Party Advisory, VDB Entry x_refsource_misc

http://packetstormsecurity.com/files/165400/ManageEngine-ServiceDesk-Plus-Remote-Code-Execution.html

US Government Resource

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44077

Scores

CVSS v3 9.8

EPSS 0.9430

EPSS Percentile 99.9%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation active

Automatable yes

Technical Impact total

Details

CISA KEV 2021-12-01

VulnCheck KEV 2021-12-01

InTheWild.io 2021-12-01

ENISA EUVD EUVD-2021-30936

CWE

CWE-306

Status published

Products (5)

zohocorp/manageengine_servicedesk_plus 11.1 11138 (8 CPE variants)

zohocorp/manageengine_servicedesk_plus 11.2 11200 (12 CPE variants)

zohocorp/manageengine_servicedesk_plus 11.3 11300 (6 CPE variants)

zohocorp/manageengine_servicedesk_plus < 11.1

zohocorp/manageengine_servicedesk_plus_msp 10.5 10500 (23 CPE variants)

Published Nov 29, 2021

KEV Added Dec 01, 2021

Tracked Since Feb 18, 2026