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CriticalVulnerabilityCVE-2026-79867updated 25 Oct 2026, 16:50 UTC

Aruba AOS-8 authentication bypass lets attackers run commands on device

A flaw lets someone nearby, without logging in, get past the login check on the device and run their own commands on it. That can take over the whole device.

Official, 2 sources
SeverityCriticalCVSS 9.6 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Nearby attackerNo login credentials needed
  2. 2Adjacent network accessAttacker must be on a neighboring network
  3. 3Auth check bypassedLogin controls are circumvented
  4. 4Commands executedArbitrary commands run on host OS
  5. ResultAttacker gains complete control of the device

What happened

An authentication bypass in the affected interface of Aruba AOS-8 allows an unauthenticated adjacent attacker to circumvent authentication controls and execute arbitrary commands on the underlying operating system.

Why it is dangerous: Successful exploitation gives the attacker complete control of the host, so network traffic, configuration and anything connected to it can be compromised. Organizations running AOS-8 controllers on their local network are most at risk.

Are you affected?

You are affected if you run Aruba AOS-8 software with the vulnerable interface reachable from a network segment an attacker can reach.

Aruba AOS-8 (specific versions not stated in the provided material)

What to do

  1. Check whether your Aruba AOS-8 devices are running an affected version and consult HPE/Aruba's security advisory for the fixed release
  2. Apply the vendor patch or upgrade to the fixed AOS-8 version as soon as it is available
  3. Restrict access to the management interface to trusted administrators only until patched

Timeline

  1. 22 Oct 2026, 19:17 UTC
    Publicly disclosed
  2. 22 Oct 2026, 19:17 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 16:50 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-79867 · GHSA-r3g2-qpfx-rpc4
CVSS
9.6 / 10
EPSS
0.3% chance of exploitation within 30 days
Disclosed
22 Oct 2026, 19:17 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 16:50 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

Aruba AOS-8 authentication bypass lets attackers run commands on device · Zero Radar