CVE-2026-73777 Authorization Bypass Vulnerabilities Leading to Privilege Escalation in AOS-CX API Endpoint

High 8.1 Published Updated

Unauthenticated remote attackers can bypass authentication controls on HPE AOS-CX switches to escalate privileges.

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-2026-73777?

CVE-2026-73777 is a high-severity authentication bypass vulnerability in Hpe Arubaos-Cx, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerabilities have been identified in the API endpoint of AOS-CX switches that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls.

Weakness: CWE-287

Which versions are affected by CVE-2026-73777?

It affects 1 product.

Products include Hpe Arubaos-Cx.

How do I fix CVE-2026-73777?

No fix has been published for CVE-2026-73777 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-73777 being exploited?

There is no known exploitation of CVE-2026-73777 in the wild and no public exploit code.

All Hpe Arubaos-Cx vulnerabilities

Sources

Also known as GHSA-r9g6-3g57-j9rr.

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