CVE-2026-23826 Unauthenticated Denial of Service in AOS-8 Network Management Service

High 7.5 Published 12 May 2026 Updated 13 May 2026

Unauthenticated remote attackers can cause denial of service in HPE Aruba AOS-8 by sending crafted packets, terminating the network management service.

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-2026-23826?

CVE-2026-23826 is a high-severity denial of service vulnerability in Arubanetworks Arubaos, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in a network management service of AOS-8 Operating System could allow an unauthenticated remote attacker to exploit this vulnerability by sending specially crafted network packets to the affected device, potentially resulting in a denial-of-service condition. Successful exploitation could cause the affected service process to terminate unexpectedly, disrupting normal device operations.

Weakness: CWE-770

Which versions are affected by CVE-2026-23826?

It affects 2 products.

Products include Arubanetworks Arubaos, Arubanetworks Sd-Wan.

How do I fix CVE-2026-23826?

No fix has been published for CVE-2026-23826 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-2026-23826 being exploited?

There is no known exploitation of CVE-2026-23826 in the wild and no public exploit code.

All Arubanetworks Arubaos vulnerabilities

Sources

Also known as GHSA-4h6r-mccq-vg7c.