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Fencer Intel
critical 9.8

CVE-2021-44077 kev in the critical feed json

Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to u…

published 4y ago modified 4mo ago also EUVD-2021-30936

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2021-12-01
epss
93.5%
EPSS 93.5% chance of exploitation in 30 days, percentile 99.8%
public exploits
1
Metasploit, plus a Nuclei check

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

  • zohocorp manageengine_servicedesk_plus 11.1
  • zohocorp manageengine_servicedesk_plus_msp 10.5
  • zohocorp manageengine_supportcenter_plus 11.0

Is CVE-2021-44077 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Timeline

  1. First public exploit (Metasploit exploit/windows/http/manageengine_servicedesk_plus_cve_2021_44077)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
4y ago
Patch by
2021-12-15 (4y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Zoho, ManageEngine ServiceDesk Plus (SDP) / SupportCenter Plus
CISA name
Zoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability

ATT&CK techniques

How it is exploited and what it leads to, in MITRE ATT&CK terms.

  • T1190 Exploit Public-Facing Application exploitation
  • T1505.003 Web Shell primary impact
  • T1003 OS Credential Dumping secondary impact
  • T1003.003 NTDS secondary impact
  • T1027 Obfuscated Files or Information secondary impact
  • T1047 Windows Management Instrumentation secondary impact
  • T1070.004 File Deletion secondary impact
  • T1087.002 Domain Account secondary impact
  • T1136 Create Account secondary impact
  • T1140 Deobfuscate/Decode Files or Information secondary impact
  • T1218 System Binary Proxy Execution secondary impact
  • T1560.001 Archive via Utility secondary impact
  • T1573.001 Symmetric Cryptography secondary impact

kev release 2025-07-28, att&ck v16.1. KEV to ATT&CK mappings by the MITRE Center for Threat-Informed Defense (Mappings Explorer, Apache-2.0). © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. Terms of use

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
last yr.

Exploit prediction

93.51% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.