Zoho ManageEngine Patch Connect Plus before 90099 is vulnerable to unauthenticated remote code execution.

published 2021-11-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28834

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 8.0%; EPSS 8.0% chance of exploitation in 30 days, percentile 94%
public exploits: 0; none known

Patch / fix

fixed in 1 links 1

zohocorp manageengine_patch_connect_plus 9.0.0

pitstop.manageengine.com/portal/en/community/topic/unauthenticated-remote-code-exec… advisory

Exploit prediction

8.01% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	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-434 Unrestricted Upload of File with Dangerous Type

References

pitstop.manageengine.com /portal/en/community/topic/unauthenticated-remote-code-execution-vulnerability-solved
patch, vendor-advisory
manageengine.com /sccm-third-party-patch-management/kb/unauthenticated-remote-code-execution.html
vendor-advisory

Sources

CVE List CVE-2021-41833
NVD CVE-2021-41833

Fencer Vulns 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.

Summary