CVE-2026-73786 Unauthenticated Network-Based Denial of Service in CPPM systems
Unauthenticated remote attackers can cause instability and degrade performance of HPE ClearPass Policy Manager servers via the web interface.
- 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-2026-73786?
CVE-2026-73786 is a high-severity denial of service 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 could allow an unauthenticated remote attacker to conduct a Denial-of-Service (DoS) attack. Successful exploitation could allow an attacker to cause instability and degrade performance of the vulnerable CPPM server.
Weakness: CWE-400
Which versions are affected by CVE-2026-73786?
How do I fix CVE-2026-73786?
No fix has been published for CVE-2026-73786 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-73786 being exploited?
There is no known exploitation of CVE-2026-73786 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-3ggm-5q39-q343.