Ivanti EPMM Authentication Bypass (CVE-2025-4427)

Historical catalog analysis: CISA added this entry on May 19, 2025. The entry reflects catalog information retrieved on August 31, 2026, not a snapshot archived on the inclusion date. Check current vendor guidance before acting.

What the vulnerability is

CVE-2025-4427 is an authentication bypass vulnerability located within the API component of Ivanti Endpoint Manager Mobile (EPMM). The flaw stems from an insecure implementation of the open-source Spring Framework library. This allows an attacker to send crafted API requests to access protected resources without providing valid credentials.

Exposure and applicability

This vulnerability affects organizations deploying Ivanti EPMM. Because the flaw resides in the API component, any asset exposing this interface to untrusted networks is at higher risk of unauthorized resource access. The vulnerability has been added to CISA’s Known Exploited Vulnerabilities (KEV) catalog as of May 19, 2025, indicating that it is a priority for remediation.

Remediation priorities

Based on the reported flaw, our analysis suggests the following prioritization for vulnerability management teams:

1. Immediate Mitigation Application: Prioritize applying vendor-provided mitigations to all EPMM instances. For cloud-based deployments, organizations should align with BOD 22-01 guidance.
2. Asset Inventory and Exposure Mapping: Identify all internet-facing API endpoints associated with Ivanti EPMM to determine the immediate attack surface.
3. Decommissioning Evaluation: In scenarios where vendor mitigations cannot be applied or are unavailable, our analysis suggests discontinuing use of the product to eliminate the exposure path.

How to validate remediation

Verification must go beyond a simple version check, as a deployed patch does not always guarantee that the configuration is secure. To verify that the vulnerability has been mitigated, defenders should:

• Confirm Mitigation Deployment: Verify through system logs or vendor-specific tools that the prescribed mitigations are active and functioning.
• API Access Testing: In a controlled environment, attempt to access protected API resources using the crafted request patterns described in vendor advisories to ensure the authentication bypass is no longer possible.

Limits and open questions

While the root cause is linked to the Spring Framework implementation, it remains unknown if this specific vulnerability has been utilized by ransomware campaigns. Additionally, while CISA has set a remediation deadline of June 9, 2025, for federal agencies, this date serves as a risk indicator rather than a mandatory requirement for private sector organizations. Residual risk may remain if the underlying Spring Framework library is not updated or if compensating controls are improperly configured.

Source and editorial note

CVE-2025-4427: Ivanti Endpoint Manager Mobile (EPMM) Authentication Bypass Vulnerability · Source date: May 19, 2025 · Retrieved August 31, 2026.

Material facts are tied to the cited primary source. Recommendations are independent defensive analysis unless attributed to the source. Confirm consequential decisions against current authoritative guidance.

Archive date: May 22, 2025. The displayed post date is assigned three days after the source date to organize this retrospective archive; it does not mean this site published the analysis then. First published by this site: October 14, 2026 at 00:14 UTC.

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