Known exploited vulnerability · CISA KEV

CVE-2022-47966: Zoho ManageEngine Multiple Products Remote Code Execution Vulnerability

Multiple Zoho ManageEngine products contain an unauthenticated remote code execution vulnerability due to the usage of an outdated third-party dependency, Apache Santuario.

CVE-2022-47966

Exploited in the wild. Fix this first.

CISA added it to the Known Exploited Vulnerabilities catalog on 2023-01-23: attackers are using it right now. It is known to be used in ransomware campaigns.

CISA KEV: Listed; Added 2023-01-23 · federal fix-by 2023-02-13
EPSS (30 days): 100%; Higher than 99.9% of CVEs · 2026-11-01
CVSS v3.1: 9.8 Critical; CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What CISA says

Zoho ManageEngine Multiple Products Remote Code Execution Vulnerability

Apply updates per vendor instructions.

NVD description · published 2023-01-18

Multiple Zoho ManageEngine on-premise products, such as ServiceDesk Plus through 14003, allow remote code execution due to use of Apache Santuario xmlsec (aka XML Security for Java) 1.4.1, because the xmlsec XSLT features, by design in that version, make the application responsible for certain security protections, and the ManageEngine applications did not provide those protections. This affects Access Manager Plus before 4308, Active Directory 360 before 4310, ADAudit Plus before 7081, ADManager Plus before 7162, ADSelfService Plus before 6211, Analytics Plus before 5150, Application Control Plus before 10.1.2220.18, Asset Explorer before 6983, Browser Security Plus before 11.1.2238.6, Device Control Plus before 10.1.2220.18, Endpoint Central before 10.1.2228.11, Endpoint Central MSP before 10.1.2228.11, Endpoint DLP before 10.1.2137.6, Key Manager Plus before 6401, OS Deployer before 1.1.2243.1, PAM 360 before 5713, Password Manager Pro before 12124, Patch Manager Plus before 10.1.2220.18, Remote Access Plus before 10.1.2228.11, Remote Monitoring and Management (RMM) before 10.1.41. ServiceDesk Plus before 14004, ServiceDesk Plus MSP before 13001, SupportCenter Plus before 11026,

Full record on NVD

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How to check if you are exposed to CVE-2022-47966

Find every Zoho ManageEngine system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2022-47966.

US federal agencies had to fix this by 2023-02-13. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.

Affected versions

Versions the National Vulnerability Database lists as vulnerable to CVE-2022-47966. Check the vendor advisory for the exact fixed builds before you sign anything off.

Product	Vulnerable versions
Zohocorp Manageengine Access Manager Plus	before 4.3; 4.3-build4300; 4.3-build4301; 4.3-build4302; 4.3-build4303; 4.3-build4304 and 3 more
Zohocorp Manageengine Ad360	before 4.3; 4.3-4300; 4.3-4302; 4.3-4303; 4.3-4304; 4.3-4305 and 3 more
Zohocorp Manageengine Adaudit Plus	before 7.0; 7.0-7000; 7.0-7002; 7.0-7003; 7.0-7004; 7.0-7005 and 14 more
Zohocorp Manageengine Admanager Plus	before 7.1; 7.1-7100; 7.1-7101; 7.1-7102; 7.1-7110; 7.1-7111 and 22 more
Zohocorp Manageengine Adselfservice Plus	before 6.2; 6.2-6200; 6.2-6201; 6.2-6202; 6.2-6203; 6.2-6204 and 6 more
Zohocorp Manageengine Analytics Plus	before 5.1; 5.1-5100; 5.1-5110; 5.1-5120; 5.1-5121; 5.1-5130 and 1 more

NVD lists 16 more affected products; see the full record on NVD.

Timeline

2023-01-18 · Published in the National Vulnerability Database
2023-01-23 · Added to CISA's Known Exploited Vulnerabilities catalog, 5 days after it was published
2023-02-13 · Fix-by date for US federal agencies, passed 1,357 days ago

Vendor advisories and fixes

https://www.manageengine.com/security/advisory/CVE/cve-2022-47966.html

More exploited Zoho vulnerabilities

CISA lists 9 exploited Zoho vulnerabilities. The closest matches:

Keep going

Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.