CVE-2023-27520: Epson ESIFNW1 Firmware

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Cross-site request forgery (CSRF) vulnerability in SEIKO EPSON printers/network interface Web Config allows a remote unauthenticated attacker to hijack the authentication and perform unintended operations by having a logged-in user view a malicious page. [Note] Web Config is the software that allows users to check the status and change the settings of SEIKO EPSON printers/network interface via a web browser. According to SEIKO EPSON CORPORATION, it is also called as Remote Manager in some products. Web Config is pre-installed in some printers/network interface provided by SEIKO EPSON CORPORATION. For the details of the affected product names/model numbers, refer to the information provided by the vendor.

Affected products

  • Epson ESIFNW1 Firmware: affected versions not specified
  • Epson ESNSB1 Firmware: affected versions not specified
  • Epson ESNSB2 Firmware: affected versions not specified
  • Epson Lp-8200c Firmware: affected versions not specified
  • Epson Lp-8500c Firmware: affected versions not specified
  • Epson Lp-8700ps3 Firmware: affected versions not specified
  • Epson Lp-9200b Firmware: affected versions not specified
  • Epson Lp-9200c Firmware: affected versions not specified
  • Epson Lp-9200ps2 Firmware: affected versions not specified
  • Epson Lp-9200ps3 Firmware: affected versions not specified
  • Epson Lp-9300 Firmware: affected versions not specified
  • Epson Lp-9600 Firmware: affected versions not specified
  • Epson Lp-9600s Firmware: affected versions not specified
  • Epson Lp-9800c Firmware: affected versions not specified
  • Epson Lp-s3000 Firmware: affected versions not specified
  • Epson Lp-s3000ps Firmware: affected versions not specified
  • Epson Lp-s3000r Firmware: affected versions not specified
  • Epson Lp-s3000z Firmware: affected versions not specified
  • Epson Lp-s300n Firmware: affected versions not specified
  • Epson Lp-s310n Firmware: affected versions not specified
  • Epson Lp-s3500 Firmware: affected versions not specified
  • Epson Lp-s4000 Firmware: affected versions not specified
  • Epson Lp-s4200 Firmware: affected versions not specified
  • Epson Lp-s4500 Firmware: affected versions not specified
  • Epson Lp-s5000 Firmware: affected versions not specified
  • and 95 more

Published 2023-04-11. Last modified 2026-06-17.