CVE-2026-73749

9.8

Hewlett Packard Enterprise (HPE) · AOS-CX

AOS-CX contains multiple vulnerabilities in a daemon that allow an unauthenticated remote attacker to achieve remote code execution via specially crafted packets.

Executive summary

A critical remote code execution vulnerability in HPE AOS-CX allows unauthenticated attackers to gain full system control via malformed network traffic.

Vulnerability

This vulnerability involves the improper processing of malformed input within an AOS-CX daemon. An unauthenticated remote attacker can trigger this flaw by sending specifically crafted packets to the target service, leading to remote code execution with elevated privileges.

Business impact

The CVSS score of 9.8 reflects the extreme severity of this vulnerability, as it requires no authentication and minimal complexity to execute. Successful exploitation grants an attacker full control over the affected network device, potentially leading to unauthorized data interception, lateral movement within the network, or complete denial of service for critical infrastructure.

Remediation

Immediate Action: Update all affected HPE AOS-CX systems to the latest patched firmware version provided by the vendor in the official security bulletin.

Proactive Monitoring: Review system and access logs for signs of anomalous packet structures or unauthorized daemon activity. Monitor for repeated service crashes or unexpected restarts of core AOS-CX processes.

Compensating Controls: Implement restrictive Access Control Lists (ACLs) on network management interfaces to limit access to trusted management subnets only. Ensure that management traffic is isolated from standard user traffic to reduce the attack surface.

Exploitation status

Public Exploit Available: Unknown.

Analyst recommendation

Given the critical nature of this vulnerability and the potential for full system compromise, organizations should prioritize patching as the primary defense. Administrators must verify the integrity of their network environment and apply the latest firmware updates immediately to negate the risk of remote code execution.

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Sources

Originally found and disclosed by This vulnerability was discovered by internal security research at HPE Networking., per the CVE Program record.