CVE-2026-76504

Summary

The flaw is an authentication bypass vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager, allowing unauthenticated attackers to gain admin-level access. This matters because it significantly compromises the security of the system, enabling unauthorized access to critical functionalities.

Exploitability

Exploitation is relatively straightforward given the attacker can craft a specific HTTP request to bypass the authentication rule. The attacker must have network access to the API endpoint.

Blast radius

If exploited, the attacker could gain full control over the affected system, potentially leading to data theft, system compromise, and disruption of services.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Disable the affected API feature or restrict access to the specific API endpoint until a patch is available.

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.