CVE-2017-7930

CVE-2017-7930 describes an Improper Authentication vulnerability in OSIsoft PI Server 2017 PI Data Archive versions prior to 2017. This flaw allows a malicious actor to potentially expose cleartext change records and spoof a server within a collective due to protocol weaknesses. With a CVSS score of 7.4 (HIGH), the vulnerability is network-exploitable with high impact on confidentiality and integrity, but high attack complexity. There is no evidence of active exploitation, public exploit code, or Metasploit/Nuclei modules, though it has received some community discussion and media coverage.