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Mallory
HighCISA KEVExploited in the wildPublic exploit

RCE in Ivanti Endpoint Manager Mobile API

IdentifiersCVE-2025-4428CWE-94· Improper Control of Generation of…

CVE-2025-4428 is a remote code execution vulnerability in the API component of Ivanti Endpoint Manager Mobile (EPMM) affecting version 12.5.0.0 and earlier. The provided content describes it as a code injection flaw in the EPMM API, with multiple references indicating the issue is a Spring Expression Language (SpEL) injection in the format parameter of /api/v2/featureusage-related endpoints. Supporting context also attributes the weakness to an insecure Hibernate Validator implementation associated with CVE-2025-35036. On its own, the flaw requires authentication, but it was widely reported as being chained with CVE-2025-4427, an authentication bypass in the same product, to achieve unauthenticated remote code execution against internet-facing EPMM appliances.

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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.

Successful exploitation allows arbitrary code execution on the vulnerable EPMM server. In practice, the content indicates this enabled full system compromise of exposed appliances and was exploited in the wild. Reported downstream effects included extraction of backend MySQL data, including LDAP user details and Office 365 tokens, credential replay for lateral movement, deployment of web shells, and broader compromise of enterprise environments in sectors such as healthcare, finance, government, and utilities.

Mitigation

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

If immediate patching is not possible, restrict or remove internet exposure of EPMM API endpoints, especially /api/v2/featureusage-related paths, and limit access to trusted administrative networks. Monitor for suspicious requests targeting featureusage endpoints, review Apache and application logs, hunt for post-exploitation artifacts such as JSP web shells and unexpected processes, and perform incident response on exposed systems because this vulnerability was actively exploited in the wild, often chained with CVE-2025-4427.

Remediation

Patch, then assume compromise.

Upgrade Ivanti Endpoint Manager Mobile to a fixed release. The provided content states Ivanti patched CVE-2025-4428 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 security update corresponding to their supported branch and treat previously internet-exposed systems as potentially compromised if patching occurred after exposure or suspected exploitation.
PUBLIC EXPLOITS

Exploits

1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos (2 hidden).

VALID 1 / 3 TOTALView more in app
CVE-2025-4428MaturityPoCVerified exploit

This repository provides an operational exploit and detection tool for CVE-2025-4427 and CVE-2025-4428, targeting Ivanti Endpoint Manager Mobile (EPMM). The main exploit is implemented in 'CVE-2025-4428.py', a Python script that allows unauthenticated remote code execution by exploiting a Server-Side Template Injection (SSTI) vulnerability in a Java bean validator. The exploit works by sending a crafted HTTP GET request to vulnerable endpoints (such as '/api/v2/featureusage' and '/api/v2/featureusage_history') with a malicious 'format' parameter that triggers arbitrary command execution on the server. The script supports custom command execution, proxying, output redirection, and multi-shell support (bash/sh). The YAML file ('CVE-2025-4427.yaml') provides a nuclei-compatible detection template for automated scanning. The repository is well-structured, with clear documentation and operational exploit code, and is suitable for both detection and exploitation of the targeted vulnerabilities.

xie-22Disclosed May 16, 2025pythonyamlnetwork
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

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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 signatures1

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 activity120

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