Epson Stylus SX510W Printer Remote Power Off DoS
Priority HIGH 77CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00595 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SEIKO EPSON CORPORATION | Epson Stylus SX510W | up to 2023-05-13 | — | No fix listed | CNA |
- Epson Stylus SX510W VendorSEIKO EPSON CORPORATION Affected up to 2023-05-13 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-7326
- 2026-10-03 Alias added: GHSA-hrm6-3g2j-qpvx
References
More SEIKO EPSON CORPORATION vulnerabilities
- TI-2020-19199 EPSON EasyMP Network Projection 2.81 - 'EMP_NSWLSV' Unquoted Service Path CVSS 4.0HIGH 8.5
- TI-2020-19119 EPSON 1.124 - 'seksmdb.exe' Unquoted Service Path CVSS 4.0HIGH 8.5
- TI-2020-19110 EPSON Status Monitor 3 'EPSON_PM_RPCV4_06' - Unquoted Service Path CVSS 4.0HIGH 8.5
- TI-2025-04446 macOS Local Privilege Escalation via Improper Authorization Handling in EPSON Printer Controller Installer CVSS 3.1HIGH 7.8
- TI-2018-04055 Cross-site scripting in SEIKO EPSON CORPORATION Epson AirPrint CVSS 3.0MEDIUM 6.1
- TI-2026-19138 Missing authentication in SEIKO EPSON CORPORATION ESC/POS CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-7326 · CVE Program
- CVE-2023-7326 · NVD
- FIRST EPSS
- GHSA-hrm6-3g2j-qpvx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences