CyberzSOC

Cisco warns that some of those vulnerabilities are exploited in the wild and assesses with high confidence that this new activity is related to the same threat actor as the ArcaneDoor attack campaign that Cisco reported in early 2024 [4]. It is recommended running compromise assessment on Internet facing vulnerable devices, and The vulnerability CVE-2025-20333, with a CVSS score of 9.9, is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device. This vulnerability affects the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software [1]. The Cisco PSIRT is aware of attempted exploitation of The vulnerability CVE-2025-20363, with a CVSS score of 9.0, is due to improper validation of user-supplied input in HTTP requests.