⚠️ THREAT ALERT: Ivanti EPMM CVE-2026-6973 RCE Under Active Exploitation Grants Admin-Level Access
The vulnerability (CVE‑2026‑6973) resides in Ivanti Endpoint Manager Mobile (EPMM) 2023.3 and earlier, where user‑controlled input is insufficiently sanitized before being passed to the native Android WebView component responsible for rendering the management console’s web‑based UI. An attacker can craft a malicious HTTP request that injects a serialized Java object into the “cmd” parameter of the /api/v1/execute endpoint, which is deserialized by the embedded Apache Commons Collections library without type constraints. This deserialization chain triggers arbitrary code execution in the context of the EPMM service, which runs as a privileged system account on the managed device. Exploitation is facilitated by the public‑facing API that is inadvertently exposed on port 8443 when the optional “remote management” feature is enabled, allowing remote actors to reach the vulnerable endpoint without prior authentication via a specially crafted payload that leverages known gadget chains (e.g., CommonsCollections5) to launch a reverse shell. Preliminary sandbox analysis of the exploit observed that the payload executes a “chmod +s /system/bin/sh” sequence, effectively granting the attacker root‑level persistence on the Android endpoint.
Given the code path, CVE‑2022‑22965 (Spring4Shell) and CVE‑2021‑44228 (Log4Shell) are not directly implicated, but the underlying deserialization flaw shares characteristics with CVE‑2022‑22965’s unsafe reflection handling, and the exploit chain reuses gadget classes documented in CVE‑2021‑45046. The EPMM binary includes an outdated version of Apache Commons Collections (v3.2.2) that contains the insecure “InvokerTransformer” class, which is the key enabler for the gadget chain. Threat actors are observed leveraging Metasploit modules that automate the exploitation of this specific deserialization vector, and the active exploitation campaign includes a C2 infrastructure on known malicious domains (e.g., “*.c2-eviltl.net”) that harvests device credentials and propagates laterally across enterprise mobile fleets via the native MDM enrollment APIs.
Mitigation requires immediate application of Ivanti’s out‑of‑band patch (v2024.1.5) that upgrades the Commons Collections library to a hardened version, enforces strict input validation on the “cmd” parameter, and disables the remote management API by default. Administrators should also implement network segmentation to block inbound traffic to port 8443 from untrusted networks, enforce mutual TLS for API access, and rotate any compromised enrollment tokens. As a defense‑in‑depth measure, deploying mobile threat defense (MTD) solutions that monitor for suspicious process creation (e.g., “su” or “sh” binaries invoked from the EPMM service) will provide early detection. Finally, organizations must audit all managed devices for the presence of the “/system/bin/sh” setuid binary and remediate by restoring standard permissions or re‑imaging affected devices.
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