CVE-2026-73749 Unauthenticated Buffer Overflow Vulnerabilities lead to Remote Code Execution in AOS-CX

Critical 9.8 Published Updated

Unauthenticated remote attackers can achieve code execution with elevated privileges via buffer overflow in AOS-CX daemon.

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-2026-73749?

CVE-2026-73749 is a critical memory corruption 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

Multiple vulnerabilities exist in a daemon of AOS-CX that may allow for improper processing of malformed input. An unauthenticated remote attacker could exploit these vulnerabilities by sending specially crafted packets to the affected service. Successful exploitation could result in remote code execution with elevated privileges.

Weakness: CWE-284

Which versions are affected by CVE-2026-73749?

It affects 1 product.

Products include Hpe Arubaos-Cx.

How do I fix CVE-2026-73749?

No fix has been published for CVE-2026-73749 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-73749 being exploited?

There is no known exploitation of CVE-2026-73749 in the wild and no public exploit code.

All Hpe Arubaos-Cx vulnerabilities

Sources

Also known as GHSA-q898-2qwx-466h.

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