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CriticalVulnerabilityCVE-2026-79875updated 25 Oct 2026, 16:50 UTC

Aruba AOS-8 network controllers: unauthenticated attacker on local network can bypass login

Attackers on the same local network segment can get past the login check without a password. Once inside, they could take full control of the device and the data it handles.

Official, 2 sources
SeverityCriticalCVSS 9.3 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. 1Adjacent attackerAlready on the same local network
  2. 2Sends PAPI requestsTargets the PAPI protocol directly
  3. 3Authentication bypassedNo valid credentials needed
  4. 4Controller accessedAdmin access and config changes possible
  5. ResultAttacker gains administrative control

What happened

A flaw in the PAPI protocol of Aruba AOS-8 allows an unauthenticated adjacent attacker to circumvent authentication controls.

Why it is dangerous: A successful attacker could gain administrative access, change system configurations, and access or manipulate sensitive data on the affected controller.

Are you affected?

You are affected if you run Aruba AOS-8 with the PAPI protocol reachable by adjacent (same-network) hosts; exact affected versions are unknown.

What to do

  1. Check the vendor advisory for affected AOS-8 versions and the patched release
  2. Apply the vendor's fixed AOS-8 version as soon as it is available
  3. Restrict access to the PAPI protocol so only trusted management hosts can reach it

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-2026-79875 · GHSA-29x9-8x48-29g7
CVSS
9.3 / 10
EPSS
0.2% 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 network controllers: unauthenticated attacker on local network can bypass login · Zero Radar