# CVE-2026-73752 — Hewlett Packard Enterprise (HPE) AOS-CX

> As of 2026-09-03, CVE-2026-73752 is a HIGH-severity vulnerability in Hewlett Packard Enterprise (HPE) AOS-CX, CVSS v3.1 8.8, EPSS 0.4% (38.6th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-73752, most recently “HPE Patches Critical ArubaOS-CX Buffer Overflow (CVE-2026-73749) Enabling Unauthenticated Remote Code Execution”.

**Last updated:** 2026-09-03

## What is CVE-2026-73752?

An unauthenticated arbitrary file write vulnerability exists in an API endpoint of AOS-CX. Successful exploitation of this vulnerability allows an attacker to write arbitrary files to the underlying operating system, which could lead to remote code execution.

The record classifies CVE-2026-73752 under weakness class [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22). Its CVSS v3 base vector states that the flaw is reachable from an adjacent network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 54 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 8.8 — HIGH (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **EPSS (FIRST):** 0.4% probability of exploitation in the next 30 days, higher than 38.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.9/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-09-01, last modified 2026-09-03

## Is CVE-2026-73752 being exploited?

It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Hewlett Packard Enterprise (HPE)](https://intel.threadlinqs.com/vendors/hewlett-packard-enterprise-hpe): AOS-CX

## How to fix CVE-2026-73752

No vendor patch reference has been recorded for CVE-2026-73752 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-73752

1 tracked threat in the Threadlinqs corpus references CVE-2026-73752, either in the campaign’s CVE list or as an indicator on the campaign record.

- [HPE Patches Critical ArubaOS-CX Buffer Overflow (CVE-2026-73749) Enabling Unauthenticated Remote Code Execution](https://intel.threadlinqs.com/threat/TL-2026-2314) — CRITICAL · 2026-09-03

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-10-10.

**Other references**

- [support.hpe.com](https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05134en_us&docLocale=en_US)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-73752
Full detection coverage and IOCs for threats exploiting CVE-2026-73752 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp