CVE-2021-22793: Schneider Electric Accusine Pcsn Active Harmonic Filter Firmware

High severity, CVSS 7.2. EPSS: 1% chance of exploitation in the next 30 days.

A CWE-200: Exposure of Sensitive Information to an Unauthorized Actor vulnerability exist in AccuSine PCS+ / PFV+ (Versions prior to V1.6.7) and AccuSine PCSn (Versions prior to V2.2.4) that could allow an authenticated attacker to access the device via FTP protocol.

Affected products

• Schneider Electric Accusine Pcsn Active Harmonic Filter Firmware: before 002.002.004 (fixed in 002.002.004)
• Schneider Electric Accusine Pcsp Pfvp Firmware: before 001.006.007 (fixed in 001.006.007)

Published 2021-09-02. Last modified 2026-06-17.