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9.3

HPE AOS-S may leak data and crash

CVE-2026-76746 · published 3 days ago
Summary

The Hewlett Packard Enterprise AOS-S network switch can be accessed without any login. An attacker could cause the switch to reveal hidden information stored in its memory and could also make the switch stop working. Apply the latest firmware update from HPE and restrict network access to trusted users.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
hewlett packard enterprise (hpe) aos-switch (aos-s) <= 16.11.0031
Original advisory text
Unauthenticated Adjacent Buffer Overflow Vulnerability Leading to Information Disclosure in AOS-S
An unauthenticated buffer overflow vulnerability exists in AOS-S. Successful exploitation could allow an unauthenticated adjacent attacker to expose sensitive memory contents and cause a denial of service on the affected device.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
9.3 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-120Classic Buffer Overflow
Timeline
Published6 Oct 2026
Updated8 Oct 2026
First seen6 Oct 2026
Sources
CVE-2026-76746 · NVD
CVE-2026-76746 · MITRE
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