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CriticalVulnerabilityCVE-2026-79859updated 25 Oct 2026, 16:50 UTC

AOS-8 network device can be taken over remotely without login

An attacker on the network can send a specially crafted request that makes the device run their own commands, with no password needed. This gives them full control of the device.

Official, 2 sources
SeverityCriticalCVSS 9.8 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. 1Attacker on networkSends crafted request, no login needed
  2. 2AOS-8 interfaceInput overflows a memory buffer
  3. 3Code executionAttacker code runs in the device
  4. 4Privileged accessRuns as privileged OS user
  5. ResultAttacker controls the device

What happened

A buffer overflow in an interface of AOS-8 allows unauthenticated remote code execution as a privileged user on the underlying operating system.

Why it is dangerous: An attacker who reaches the vulnerable interface can run arbitrary code with privileged access, potentially compromising the network infrastructure and anything it routes or protects.

Are you affected?

You are affected if you run an AOS-8 version with the vulnerable interface exposed to a network an attacker can reach.

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

What to do

  1. Check the vendor advisory for the AOS-8 version you run and whether it is affected
  2. Restrict network access to the affected AOS-8 interface to trusted management hosts only
  3. Apply the vendor's patched AOS-8 release as soon as it is available

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-2026-79859 · GHSA-8r2w-2fj5-gg7j
CVSS
9.8 / 10
EPSS
0.7% 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

AOS-8 network device can be taken over remotely without login · Zero Radar