CVE-2026-73788

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Privilege Escalation in ClearPass OnGuard Agent

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Hewlett Packard Enterprise (HPE)

Description

A vulnerability in the ClearPass OnGuard agent could allow an authenticated remote attacker to elevate their own privileges on a vulnerable ClearPass OnGuard deployment. Successful exploitation could allow an attacker to obtain root privileges, leading to potentially unauthorized operation of the vulnerable system.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-09

Last Modified

2026-09-10

Generated

2026-09-30

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-73788

EUVD

EUVD-2026-75125

Affected Vendors & Products

Vendor	Product	Version / Range
hpe	clearpass_onguard	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This vulnerability allows an authenticated remote attacker to escalate their privileges on a ClearPass OnGuard deployment. Exploitation could grant root access, enabling unauthorized control over the system.

Impact Analysis

If exploited, an attacker could gain full control of the vulnerable system, potentially accessing sensitive data, modifying configurations, or disrupting operations.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, potentially violating GDPR, HIPAA, or other regulations requiring strict access controls and data protection.

Mitigation Strategies

Apply the latest security patches or updates provided by HPE for ClearPass OnGuard to address privilege escalation risks. Ensure strict access controls and monitor for unauthorized privilege changes.

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