SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2021-44077

Zoho ManageEngine ServiceDesk Plus Remote Code Execution Vulnerability

KEVCRITICAL 9.8EPSS 93.3%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 15 December 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
93.30% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 1 December 2021 · due 15 December 2021
Weakness
CWE-306
Affected
zohocorp/manageengine servicedesk plus · zohocorp/manageengine servicedesk plus msp · zohocorp/manageengine supportcenter plus
Source
cve@mitre.org
EPSS trend
0%48%95%26 October 2026: 93.30%26 October 202626 October 2026

EPSS 93.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-44077

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.