CVE-2026-73789 Unauthenticated Insecure Parameter Manipulation allows Data Tampering In CPPM Web Interface

Medium 5.3 Published Updated

Unauthenticated attackers can manipulate guest account parameters to extend network access beyond policy limits, requiring HPE ClearPass Policy Manager administrators to apply patches.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-73789?

CVE-2026-73789 is a medium-severity vulnerability in Hewlett Packard Enterprise (HPE) ClearPass Policy Manager (CPPM), published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the web-based management interface of CPPM guest account management services could allow an unauthenticated remote attacker to manipulate account settings. Successful exploitation could allow an attacker to extend network access beyond policy limits, leading to unauthorized prolonged use of network resources.

Weakness: CWE-284

Which versions are affected by CVE-2026-73789?

How do I fix CVE-2026-73789?

No fix has been published for CVE-2026-73789 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-73789 being exploited?

There is no known exploitation of CVE-2026-73789 in the wild and no public exploit code.

Sources

Also known as GHSA-wxp5-6vxp-r6fw.

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