CVE-2021-3160

CVE-2021-3160 is a critical deserialization vulnerability affecting the login page of ACA ASSUREX RENTES, specifically the ASSUWEB 359.3 build 1 subcomponent. This flaw allows an unauthenticated remote attacker to achieve remote code execution by injecting a specially crafted serialized Java object via an HTTP request. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, its high FAUCET Risk Score of 91/100 indicates a substantial theoretical threat.