CVE-2023-7326 HIGH

CVE-2023-7326: Epson Stylus SX510W Printer Remote Power Off DoS

Vendor Seiko Epson
Product Epson Stylus SX510W
Weakness CWE-400
Published November 12, 2025
Last update April 7, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

The Epson Stylus SX510W embedded web management service fails to properly handle consecutive ampersand characters in query parameters when accessing /PRESENTATION/HTML/TOP/INDEX.HTML. A remote attacker can send a malformed request that triggers improper input parsing or memory handling, resulting in the printer process shutting down or powering off, causing a denial of service condition.

Key dates

02Disclosure timeline

November 12, 2025 CVE published
April 7, 2026 Record updated