CVE-2026-73761 Hewlett Packard Enterprise (HPE) CVE debrief

Who should care

Network administrators and security teams managing AOS-CX installations, particularly those using versions prior to 10.18.0001, 10.13.1180, or 10.16.1051, should be aware of this vulnerability and take steps to mitigate it. This includes reviewing current deployments, applying vendor patches, and monitoring network traffic for suspicious activity. Security teams should also consider compensating controls like network segmentation for exposed systems.

Technical summary

An out-of-bounds read vulnerability exists in AOS-CX, which could lead to unauthenticated information disclosure by sending a specially crafted packet. The vulnerability has a CVSS score of 6.5 and is considered medium severity. Affected systems likely include ArubaOS-CX versions prior to 10.18.0001, 10.13.1180, or 10.16.1051. Organizations should prioritize patching to prevent potential information disclosure from the underlying operating system.

Defensive priority

Organizations using AOS-CX should prioritize patching this vulnerability to prevent potential information disclosure from the underlying operating system.

Recommended defensive actions

• Inventory AOS-CX installations to identify potentially affected systems.
• Apply vendor patches or updates as available.
• Monitor network traffic for suspicious activity.
• Implement compensating controls like network segmentation.
• Review current deployments and configurations for potential exposure.
• Verify AOS-CX installations and review vendor patches for potential exposure.
• Track and document remediation efforts for auditing purposes.

Evidence notes

The CVE description indicates an out-of-bounds read vulnerability exists in AOS-CX, potentially leading to unauthenticated information disclosure. Limited information is available on affected versions, but multiple CPE criteria list vulnerable ArubaOS-CX versions. Network administrators should verify AOS-CX installations and review vendor patches for potential exposure. Evidence is limited, and defenders should focus on patching and compensating controls.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.