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CVE-2021-44515: Zoho Desktop Central Authentication Bypass Vulnerability

criticalknown exploitedpublic exploitCVE-2021-44515
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 Desktop Central contains an authentication bypass vulnerability that could allow an attacker to execute arbitrary code in the Desktop Central MSP server.

CSIRTS triage

vendor: Zohoproduct: Desktop CentralAuthentication bypassRemote code execution
What
Zoho Desktop Central has an authentication bypass vulnerability that could allow arbitrary code execution.
Who is affected
Deployments of Zoho Desktop Central.
Urgency
Remediation is critical due to active exploitation and high severity.
Action
Apply the latest security updates from Zoho.

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
2021-12-10
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-44515

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-2021-44515coverage & exploitation statusNVD · CVE.org

Recent advisories for Zoho Desktop Central

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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