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Vulnerability record · CVE-2023-7326 · published 12 November 2025

CVE-2023-7326: Uncontrolled resource consumption vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.56% · top 55.9% CWE-400 · Uncontrolled resource consumption Deferred
8.7CVSS 4.0 base score
0.56%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.epson.eu/en_EU/support/sc/epson-stylus-sx510w/s/s837
https://www.exploit-db.com/exploits/51441
https://www.vulncheck.com/advisories/epson-stylus-printer-remote-power-off-dos
https://www.exploit-db.com/exploits/51441

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Source: NIST National Vulnerability Database (record CVE-2023-7326), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.