CVE-2026-1603
📋 TL;DR
An authentication bypass vulnerability in Ivanti Endpoint Manager allows remote unauthenticated attackers to access stored credential data. This affects all Ivanti Endpoint Manager installations before version 2024 SU5. Attackers can potentially obtain sensitive authentication information without valid credentials.
💻 Affected Systems
- Ivanti Endpoint Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers obtain administrative credentials, gain full control of the endpoint management system, and potentially compromise all managed endpoints across the organization.
Likely Case
Attackers leak specific credential data that could be used for lateral movement, privilege escalation, or further attacks against the organization's infrastructure.
If Mitigated
With proper network segmentation and access controls, impact is limited to credential exposure without immediate system compromise.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity. Remote unauthenticated access makes this particularly dangerous.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2024 SU5 or later
Vendor Advisory: https://hub.ivanti.com/s/article/Security-Advisory-EPM-February-2026-for-EPM-2024?language=en_US
Restart Required: Yes
Instructions:
1. Download Ivanti Endpoint Manager 2024 SU5 or later from the Ivanti portal. 2. Backup current configuration and database. 3. Run the installer with administrative privileges. 4. Restart the EPM services or server as prompted.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to the EPM server to only trusted administrative networks
Web Application Firewall Rules
allImplement WAF rules to block suspicious authentication bypass attempts
🧯 If You Can't Patch
- Isolate the EPM server from internet access and restrict internal access to only necessary administrative systems
- Implement enhanced monitoring and alerting for authentication attempts and credential access patterns
🔍 How to Verify
Check if Vulnerable:
Check Ivanti Endpoint Manager version in the web interface under Help > About or via the EPM consoleCheck Version:
On EPM server: Check registry (Windows) or configuration files (Linux) for version informationVerify Fix Applied:
Verify version is 2024 SU5 or later and test authentication mechanisms are functioning properly📡 Detection & Monitoring
Log Indicators:
- Unusual authentication attempts from unexpected IPs
- Credential access logs showing unauthorized queries
- Failed authentication followed by successful credential access
Network Indicators:
- HTTP requests to EPM authentication endpoints without proper session tokens
- Unusual traffic patterns to credential storage endpoints
SIEM Query:
source="epm_logs" AND (event_type="auth_bypass" OR (auth_result="failure" AND subsequent_event="credential_access"))