CVE-2026-73774 Hewlett Packard Enterprise (HPE) CVE debrief

Who should care

Administrators and security teams responsible for HPE Aruba CX switches running AOS-CX should be aware of this vulnerability and take immediate action to patch or mitigate it. They should review the security advisory and CVE record to understand the affected scope, severity, and vendor guidance. Security teams should prioritize patching or mitigating this vulnerability to prevent potential exploitation. IT operations teams should inventory AOS-CX installations to identify potentially affected systems and implement compensating controls such as network segmentation and access controls if patching is not feasible in the short term. Network administrators should monitor for suspicious packet activity and verify patch application and system integrity after applying the patch. Vulnerability management teams should track exceptions and retest remediated assets to ensure the vulnerability is properly addressed.

Technical summary

A buffer overflow vulnerability exists in the underlying operating system of AOS-CX that could lead to unauthenticated disclosure of sensitive information by sending specially crafted packets to the affected system. Successful exploitation of this vulnerability could result in limited disclosure or modification of information and disruption of the affected system. The vulnerability affects HPE Aruba CX switches running AOS-CX versions prior to 10.11.0. This condition could allow an unauthenticated attacker to cause limited disclosure or modification of information and disruption of the affected system.

Defensive priority

HPE Aruba CX switches running AOS-CX versions prior to 10.11.0 may be vulnerable to a buffer overflow condition when processing specially crafted packets. This could allow an unauthenticated attacker to cause limited disclosure or modification of information and disruption of the affected system.

Recommended defensive actions

• Apply the patch provided by HPE as described in the security advisory.
• Inventory AOS-CX installations to identify potentially affected systems.
• Implement compensating controls such as network segmentation and access controls.
• Monitor for suspicious packet activity.
• Verify patch application and system integrity.

Evidence notes

The CVE Program record and NVD vulnerability detail pages provide official information about this vulnerability. HPE has released a security advisory describing the vulnerability and providing a patch. The vulnerability affects HPE Aruba CX switches running AOS-CX versions prior to 10.11.0. Evidence is limited to CVE and NVD information. Defenders should verify patch application, review system logs for suspicious activity, and monitor for potential exploitation attempts.

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.