CVE-2017-7884

CVE-2017-7884 describes a privilege escalation vulnerability in Adam Kropelin's APC UPS Daemon (APCUPSD) through version 3.14.14. A local, authenticated, but unprivileged user can replace the apcupsd.exe service executable with a malicious one, which will then execute with SYSTEM privileges upon startup due to overly permissive "RW NT AUTHORITY\Authenticated Users" permissions. This vulnerability has a CVSSv3 score of 8.4 (HIGH), indicating a high impact on confidentiality, integrity, and availability, with low attack complexity and no user interaction required. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.