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CVE-2021-37415: Zoho ManageEngine ServiceDesk Authentication Bypass Vulnerability

criticalknown exploitedpublic exploitCVE-2021-37415
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Zoho ManageEngine ServiceDesk Plus before 11302 is vulnerable to authentication bypass that allows a few REST-API URLs without authentication

CSIRTS triage

vendor: Zohoproduct: ManageEngine ServiceDesk PlusAuthentication bypassaffected: before 11302
What
The vulnerability allows authentication bypass for certain REST-API URLs.
Who is affected
Deployments of Zoho ManageEngine ServiceDesk Plus before version 11302 are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Upgrade to version 11302 or later.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-12-01
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-37415

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2021-37415coverage & exploitation statusNVD · CVE.org

Recent advisories for Zoho ManageEngine ServiceDesk

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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