7.5
CWE
20
Advisory Published
Updated

CVE-2023-38556: Input Validation

First published: Wed Aug 02 2023(Updated: )

Improper input validation vulnerability in SEIKO EPSON printer Web Config allows a remote attacker to turned off the printer. [Note] Web Config is the software that allows users to check the status and change the settings of SEIKO EPSON printers via a web browser. Web Config is pre-installed in some printers provided by SEIKO EPSON CORPORATION. For the details of the affected product names/model numbers, refer to the information provided by the vendor.

Credit: vultures@jpcert.or.jp vultures@jpcert.or.jp

Affected SoftwareAffected VersionHow to fix
Epson Ep-801a Firmware
Epson Ep-801a
Epson Ep-802a Firmware
Epson Ep-802a
Epson Ep-901a Firmware
Epson Ep-901a
Epson Ep-901f Firmware
Epson Ep-901f
Epson Ep-902a Firmware
Epson Ep-902a
Epson Pa-tcu1 Firmware
Epson Pa-tcu1
Epson Pm-t960 Firmware
Epson Pm-t960
Epson Pm-t990 Firmware
Epson Pm-t990
Epson Px-201 Firmware
Epson Px-201
Epson Px-502a Firmware
Epson Px-502a
Epson Px-601f Firmware
Epson Px-601f
Epson Px-602f Firmware
Epson Px-602f

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Frequently Asked Questions

  • What is CVE-2023-38556?

    CVE-2023-38556 is an improper input validation vulnerability in SEIKO EPSON printer Web Config that allows a remote attacker to turn off the printer.

  • How does the vulnerability in SEIKO EPSON printer Web Config work?

    The vulnerability in SEIKO EPSON printer Web Config occurs due to improper input validation, allowing a remote attacker to exploit the vulnerability and turn off the printer.

  • What is the severity of CVE-2023-38556?

    CVE-2023-38556 has a severity rating of 7.5 (high).

  • Which software is affected by CVE-2023-38556?

    SEIKO EPSON printers with Web Config software are affected by CVE-2023-38556.

  • How can I fix CVE-2023-38556?

    To fix CVE-2023-38556, apply the necessary updates and patches provided by SEIKO EPSON to the affected printer's Web Config software.

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