The Detectify security research team has launched "The Researcher's Desk," a series analyzing complex vulnerabilities, with its first case focusing on an exploit chain targeting Cisco ASA and FTD firewalls. This chain begins with an unauthenticated access flaw, CVE-2025-20362, which allows attackers to bypass authorization due to issues in user input validation, specifically a Path Traversal/Normalization flaw, and gain access to restricted endpoints. This flaw, though moderate in severity, becomes critical when used to bypass defenses protecting another vulnerability, CVE-2025-20333, a Buffer Overflow that leads to unauthenticated remote code execution. The case illustrates the importance of addressing all potential vulnerabilities in a chain, as attackers often exploit lower-severity issues to expose more critical flaws. The Detectify team advises immediate patching, segmentation, and isolation of administrative access to mitigate such threats, and encourages the use of payload-based testing to identify these vulnerabilities.