Ivanti Endpoint Manager Mobile (EPMM) contains a code injection vulnerability that could allow attackers to achieve unauthenticated remote code execution.
FREQUENTLY ASKED
What is CVE-2026-1340 and why does it matter?
CVE-2026-1340 is a critical code injection vulnerability (CWE-94) in Ivanti Endpoint Manager Mobile (EPMM). It matters significantly because it allows unauthenticated attackers to achieve remote code execution (RCE) with a CVSS score of 9.8. This means an external actor could potentially take total control of the management server without needing any login credentials or user interaction.
Which versions of Ivanti EPMM are affected by this vulnerability?
According to the source data, the affected versions include Ivanti Endpoint Manager Mobile (EPMM) versions 12.x.1.x RPM and 12.x.0.x RPM. Organizations running these specific releases should prioritize immediate identification and remediation to prevent unauthorized network-based exploitation.
Has a patch been released for CVE-2026-1340?
Yes, security updates have been made available. Ivanti has provided specific RPM update packages including version 1.1.0S-5 and 1.1.0L-5 to address the security flaw. Administrators should follow the vendor's official security advisory links to download and apply the relevant security updates for their specific environment.
What is the remediation deadline for CVE-2026-1340?
The remediation deadline is set for 2026-04-11. For organizations subject to CISA BOD 22-01, this deadline is a mandatory requirement for federal civilian executive branch agencies. For other organizations, meeting this deadline is critical to minimize the window of opportunity for active exploitation, which is currently reported as 'active' by SSVC metrics.
How can I check if my Ivanti EPMM deployment is affected?
To check for exposure, verify your current EPMM version against the affected 12.x series RPMs. Furthermore, Ivanti recommends checking for signs of potential compromise on all internet-accessible products. Administrators should review system logs for unusual unauthenticated requests and follow the assessment guidelines provided in the official Ivanti security advisory article.
CVE-2026-1340 represents a critical security flaw in Ivanti Endpoint Manager Mobile (EPMM), characterized as a CWE-94 Improper Control of Generation of Code ('Code Injection') vulnerability. With a CVSS score of 9.8 (CRITICAL), this vulnerability poses an extreme risk to enterprise mobility infrastructure by allowing unauthenticated attackers to achieve full remote code execution (RCE) via a network vector. Given the SSVC exploitation status is marked as 'active,' immediate remediation is required before the 2026-04-11 deadline.
Vulnerability Profile
Field
Details
CVE ID
CVE-2026-1340
Affected Product & Versions
EPMM 12.x.1.x RPM, 12.x.0.x RPM
CVSS Score & Severity
9.8 (CRITICAL)
CVSS Version
3.1
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
CWE IDs
CWE-94
Date Disclosed
2026-04-08
Remediation Deadline
2026-04-11
SSVC Exploitation Status
Active
Known Ransomware Use
Unknown
Patch Available
Yes
Technical Deep Dive: CWE-94 in Ivanti EPMM
The vulnerability, identified as CVE-2026-1340, centers on CWE-94: Improper Control of Generation of Code, more commonly known as Code Injection. In the context of Ivanti Endpoint Manager Mobile (EPMM), this occurs when the application fails to properly neutralize or validate input that is subsequently used to construct code segments executed by the server-side environment. Unlike command injection (CWE-77), where an attacker executes system-level commands, code injection involves the injection of language-specific code (such as Java or PHP) into the application's runtime, which can then be leveraged to achieve the same result: total system compromise.
The attack chain for CVE-2026-1340 is particularly dangerous because it requires zero authentication and no user interaction. An attacker on the network can send a specially crafted request to an exposed EPMM endpoint. Because the application does not properly sanitize this input, the payload is interpreted as valid code and executed with the privileges of the EPMM service. This bypasses all traditional security barriers, allowing an adversary to establish a foothold directly on a critical piece of management infrastructure.
Understanding the Attack Surface and Blast Radius
Endpoint Manager Mobile servers are high-value targets because they act as the "source of truth" for an organization's mobile device fleet. They hold sensitive configurations, device identities, and often possess deep integration with internal directories like Active Directory.
The blast radius of a successful exploit is "Total" according to SSVC metrics. Once code execution is achieved:
Data Exfiltration: Attackers can access sensitive mobile device data, user credentials, and corporate certificates.
Lateral Movement: The EPMM server often sits in a dual-homed or DMZ position, providing a perfect pivot point into the internal corporate network.
Persistence: By injecting malicious code into the RPM-based underlying system, attackers can maintain access even through some standard reboots or configuration changes.
This vulnerability shares similarities with previous high-profile Ivanti flaws (such as those affecting the Sentry or Connect Secure products), where unauthenticated endpoints were targeted to bypass the very security controls the products were intended to enforce.
Who Is Affected and Compliance Implications
This vulnerability impacts all organizations currently utilizing Ivanti Endpoint Manager Mobile (EPMM) versions 12.x.1.x and 12.x.0.x on RPM-based deployments. This includes a wide range of sectors, from government agencies to large-scale global enterprises that rely on EPMM for Unified Endpoint Management (UEM).
CISA BOD 22-01 Compliance
Due to the active exploitation status, this vulnerability falls under the scope of CISA Binding Operational Directive (BOD) 22-01. Federal Civilian Executive Branch (FCEB) agencies are mandated to apply the provided mitigations or discontinue use of the product by the 2026-04-11 deadline. While non-federal organizations are not legally bound by this directive, CISA strongly encourages all entities to treat this deadline as a critical milestone for risk reduction. Failure to patch within this window significantly increases the likelihood of a successful breach, as automated exploitation tools are likely already in use by sophisticated threat actors.
Official Remediation and Patching Steps
Ivanti has released security updates to address the code injection flaw. Administrators must act immediately to verify their versions and apply the necessary RPM packages.
Identify Vulnerable Instances: Check the version of your EPMM deployment. If you are on the 12.x.0.x or 12.x.1.x RPM branches, you are at risk.
Download Official Patches: Access the Ivanti support portal to obtain the following specific security update packages:
Apply the Update: Follow the standard RPM installation procedures as outlined in the Ivanti security advisory. Ensure that the service is restarted correctly to initialize the updated code libraries.
Verify Mitigation: After patching, confirm the version string and monitor system logs to ensure the service is functioning without errors.
Check for Compromise: Before and after patching, audit logs for any historical evidence of unauthenticated access to management endpoints or unusual outbound traffic from the EPMM server.
Beyond patching CVE-2026-1340, organizations should adopt a defense-in-depth posture to protect their mobile management infrastructure:
Restrict Management Access: Ensure that the EPMM administrative interface is not exposed to the public internet. Use a VPN or Zero Trust Network Access (ZTNA) to gate access to the management console.
Implement Egress Filtering: Limit the ability of the EPMM server to initiate outbound connections to the internet. Only allow traffic to known, trusted vendor update sites and necessary cloud services.
Monitor for Anomalous Execution: Use Endpoint Detection and Response (EDR) tools on the EPMM host (where possible) to detect the execution of unusual shells or scripts that might indicate a code injection attempt.
Regular Log Auditing: Centralize EPMM logs in a SIEM and alert on unauthenticated status codes (e.g., 401/403) appearing in patterns that suggest scanning or exploitation attempts.
Zero-Trust Architecture: Treat the MDM/UEM server as a high-risk zone. Segment it from the core internal network to prevent lateral movement in the event of a successful RCE.
Rapid Patch Cycles: Establish a process for out-of-band patching for critical CVSS 9+ vulnerabilities. Given the 3-day window for this CVE, a standard monthly patch cycle is insufficient.