Stack-based buffer overflow in SEIKO EPSON CORPORATION Web Config
Priority MEDIUM 40CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
Stack-based buffer overflow vulnerability exists in SEIKO EPSON Web Config. Specially crafted data input by a logged-in user may execute arbitrary code. As for the details of the affected products and versions, see the information provided by the vendor under [References].
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00534 45th percentileScored 2026-11-08
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | Web Config | See the information/details provided by the vendor | — | No fix listed | CNA |
- Web Config VendorSEIKO EPSON CORPORATION Affected See the information/details provided by the vendor Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66635
- 2026-10-03 Alias added: GHSA-3xxw-5cqg-mq5w
References
More SEIKO EPSON CORPORATION vulnerabilities
- TI-2023-06693 Epson Stylus SX510W Printer Remote Power Off DoS CVSS 4.0HIGH 8.7
- 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
Sources
- CVE-2025-66635 · CVE Program
- CVE-2025-66635 · NVD
- FIRST EPSS
- GHSA-3xxw-5cqg-mq5w · 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