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HighCISA KEVExploited in the wildPublic exploit

Ivanti Endpoint Manager Mobile API Authentication Bypass

IdentifiersCVE-2025-4427CWE-288· Authentication Bypass Using an…

CVE-2025-4427 is an authentication bypass vulnerability in the API component of Ivanti Endpoint Manager Mobile (EPMM) 12.5.0.0 and earlier. The flaw allows an unauthenticated attacker to access protected API resources without supplying valid credentials. The provided content further characterizes the issue as affecting protected EPMM API endpoints and attributes it to an insecure Spring Framework implementation. In observed attack chains, CVE-2025-4427 was used as the pre-authentication access primitive to reach functionality that should have required authentication, and it was subsequently chained with CVE-2025-4428 to achieve unauthenticated remote code execution on exposed EPMM systems.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

By itself, the vulnerability enables unauthorized access to protected EPMM API resources and bypasses normal authentication controls. In practice, the content indicates attackers chained it with CVE-2025-4428 to obtain full system compromise and unauthenticated remote code execution on internet-facing EPMM appliances. Reported downstream impacts from related exploitation activity included unauthorized administrative control, access to backend data such as LDAP user details and Office 365 tokens, and follow-on lateral movement inside victim environments. The content states the issue was actively exploited in the wild and added to CISA KEV on 2025-05-19.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, restrict or remove internet exposure of the EPMM API and limit access to trusted management networks only. Because the content indicates active in-the-wild exploitation and use in an RCE chain, organizations should monitor EPMM and web access logs for suspicious access to protected API endpoints, hunt for signs of post-exploitation, and treat previously exposed vulnerable systems as potentially compromised pending forensic review. Additional compensating controls include network segmentation and restricting access to administrative and API interfaces.

Remediation

Patch, then assume compromise.

Upgrade Ivanti Endpoint Manager Mobile to a fixed release. The content states Ivanti patched CVE-2025-4427 in EPMM versions 11.12.0.5, 12.3.0.2, 12.4.0.2, and 12.5.0.1. Organizations should apply the vendor-provided update appropriate to their supported branch and verify that internet-exposed EPMM instances are no longer running 12.5.0.0 or earlier vulnerable builds.
PUBLIC EXPLOITS

Exploits

No valid public exploits. Mallory filtered out 3 candidates as fakes, detection scripts, or README-only repos.

VALID 0 / 3 TOTALView more in app

All candidate exploits were filtered out by Mallory's validation.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
IvantiEndpoint Manager Mobileapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence4

Every observed campaign linking this CVE to a named adversary.

Associated malware3

Malware families riding this exploit, with evidence and IOCs.

Detection signatures2

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity169

Community discussion across Reddit, Mastodon, and other social sources.