🛡 CVE-2021-40539
Zoho ManageEngine ADSelfService Plus Authentication Bypass Vulnerability
Zoho ManageEngine CWE-55
Ransomware use
KNOWN
CISA KEV
EPSS
99.0%
Likely exploited · 100th pct
Added to KEV
2021-11-03
CISA
Remediate by
2021-11-17
⚠ OVERDUE
CWE
CWE-55
weakness
📈 EPSS exploit probability
99.0%
FIRST EPSS — 30-day probability of exploitation in the wild · band Likely exploited · higher than 100% of all scored CVEs
⚠ KEV remediation overdue
CISA required federal remediation by 2021-11-17. This exploited vulnerability is past its Binding Operational Directive 22-01 due date — prioritize patch/mitigation and hunt for exploitation.
📄 Description
Zoho ManageEngine ADSelfService Plus contains an authentication bypass vulnerability affecting the REST API URLs which allow for remote code execution.
🏹 Attributed exploitation
Malware / ransomware (KEV): ransomware (KEV-flagged)
🔗 External references & OSINT
🔄 Internal pivots & actions
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