Is CVE-2021-41833 in the CISA KEV catalog?

No. CVE-2021-41833 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41833?

CVE-2021-41833 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-41833?

CVE-2021-41833 has an EPSS score of 7.76% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41833?

Upgrade manageengine patch connect plus to 9.0.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-41833

CRITICALEPSS 94th pctl

9.8

CVSS v3

NVD

Description

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

CWE-434Unrestricted File Upload

How to fix

Remediation Available

manageengine patch connect plusNVD

Affected:< 9.0.0Fixed in:9.0.0CVE-2021-41833derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

7.76%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

pitstop.manageengine.com

Vendor Advisory1

manageengine.com

Related Vulnerabilities

Other CWE-434 (Unrestricted File Upload) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-12617	High	8.1	100%	KEV	Fix
CVE-2018-15961	Critical	9.8	100%	KEV	-
CVE-2021-31207	Medium	6.6	100%	KEV + Ransom	Fix
CVE-2017-12615	High	8.1	100%	KEV + Ransom	-
CVE-2025-31324	Critical	10.0	99%	KEV + Ransom	-
CVE-2024-50623	Critical	9.8	99%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.