Auth bypass in Hewlett Packard Enterprise (HPE) Aos-Cx

CVE-2026-73777

Vulnerabilities have been identified in the API endpoint of AOS-CX switches that could potentially allow an unauthenticated remote actor to circumvent existing authentication controls.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-73777: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73777?
CVE-2026-73777 is a high-severity vulnerability in Hewlett Packard Enterprise (HPE) Aos-Cx, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-09-01.
How severe is CVE-2026-73777?
High severity. CVSS v3 base score is 8.1 out of 10.