CVE-2017-7945

CVE-2017-7945 describes an information leakage vulnerability in the GlobalProtect external interface of Palo Alto Networks PAN-OS versions prior to 6.1.17, 7.0.15, 7.1.9, and 8.0.2. This flaw allows remote attackers to enumerate valid usernames by observing differing error messages for successful versus failed username attempts, facilitating brute-force attacks. With a CVSSv3 score of 9.8 (Critical), this vulnerability has a network attack vector, low attack complexity, and high potential impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion, and it is not listed in CISA's KEV catalog.