CVE-2026-45176: Idira Endpoint Privilege Manager Agent Privilege Escalation Vulnerability

Technical summary

CVE-2026-45176 stems from improper access control (CWE-269) in Idira Endpoint Privilege Manager Agent. The agent fails to properly validate or restrict access to internal communication mechanisms and file operations used by high-privileged components. A local, low-privileged process can exploit this by intercepting, modifying, or spoofing these interactions to bypass permission restrictions. The CVSS 3.1 score of 7.8 reflects the high impact: an attacker gains confidentiality, integrity, and availability violations through local privilege escalation without user interaction required.

Business impact

Compromise of Idira Endpoint Privilege Manager Agent undermines the core security function of the tool—controlling privileged access. An attacker who exploits this can execute commands with elevated privileges, potentially accessing sensitive data, modifying system configurations, or launching lateral movement attacks. Organizations relying on Idira for privileged access management face a direct threat to their endpoint security posture. Remediation requires immediate patching to prevent endpoint takeover.

Affected systems

Idira Endpoint Privilege Manager Agent versions prior to 26.5 are vulnerable. The agent runs on multiple platforms including Windows, macOS, and Linux. Any system running an affected version of the agent—particularly those managing critical infrastructure or sensitive workloads—is at risk if a low-privileged local account exists on that system.

Exploitability

Exploitation requires local access and a low-privileged user account on the target system. No network access, authentication bypass, or user interaction is needed. The attack vector is local and the complexity is low, making exploitation straightforward for an attacker already present on the system. However, widespread remote exploitation is unlikely unless combined with a separate remote code execution flaw to gain initial local access.

Remediation

Upgrade Idira Endpoint Privilege Manager Agent to version 26.5 or later. This patched version corrects the improper access control issue in high-privileged components. Verify the update against the CyberArk Security Bulletin CA26-19 to confirm patching details and any compatibility considerations for your environment.

Patch guidance

Prioritize patching all endpoints running Idira Endpoint Privilege Manager Agent versions before 26.5. Plan upgrades in phases across your environment to minimize service disruption. Before deploying, review CyberArk's bulletin CA26-19 for any prerequisites, rollback procedures, or platform-specific guidance. Test the patch in a staging environment first, particularly if you run custom scripts or integrations that interact with the agent.

Detection guidance

Monitor for suspicious local privilege escalation attempts on systems running Idira Endpoint Privilege Manager Agent. Look for unexpected process spawning with elevated privileges, unusual file access patterns targeting the agent's internal communication channels, or log entries indicating access control violations within the agent. Endpoint Detection and Response (EDR) tools should flag privilege escalation from low-privileged to high-privileged contexts without corresponding user approval workflows. Review agent logs for signs of tampered internal communications or unauthorized file operations.

Why prioritize this

This vulnerability merits immediate remediation priority because it directly enables local privilege escalation on a security-critical tool. Any attacker with a foothold on an endpoint—whether through phishing, supply-chain compromise, or lateral movement—can exploit this to gain elevated privileges. The low attack complexity and high impact make it attractive to threat actors. Organizations using Idira for privileged access management face elevated risk if patches are not applied quickly.

Risk score, explained

The CVSS 3.1 score of 7.8 (HIGH) reflects a local attack vector with low complexity, low privilege requirements, and high impact across confidentiality, integrity, and availability. While the scope is unchanged (single system), the ability to escalate from low to high privilege without user interaction makes this a serious flaw in a tool designed to prevent exactly such abuse. The absence from CISA's KEV catalog suggests limited current public exploitation, but the straightforward nature of the attack means risk will increase as awareness spreads.

Frequently asked questions