Cisco has patched a critical vulnerability in its Secure Workload software that earned a perfect 10 out of 10 severity score. The flaw could allow attackers to send crafted API requests to gain Site Admin privileges, letting them read sensitive information and modify configurations across tenant boundaries in both cloud and on-premises deployments. Cisco says the vulnerability hasn't been exploited in the wild yet, but is urging all users to update immediately to avoid potential attacks.