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9.1

HP AOS‑S could leak memory or crash remotely

CVE-2026-76747 · published 3 days ago
Summary

The AOS‑S software used in HP switches has a coding error that lets anyone on the network read parts of its memory and potentially make the switch stop working. This could expose confidential information and cause service interruptions. Apply the vendor’s patch or update the switch firmware as soon as possible to protect the device.

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 Buffer Overflow Vulnerabilities lead to Information Disclosure in AOS-S
Buffer overflow vulnerabilities exist in the affected interface of AOS-S. Successful exploitation could allow an unauthenticated remote attacker to expose sensitive memory contents and cause a denial of service on the device.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
9.1 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-2026-76747 · NVD
CVE-2026-76747 · MITRE
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