What is CVE-2013-3366?

CVE-2013-3366 is a high-severity vulnerability in Trendnet Tew-812dru, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-11-13.

How severe is CVE-2013-3366?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Trendnet Tew-812dru

CVE-2013-3366

Undocumented TELNET service in TRENDnet TEW-812DRU when a web page named backdoor contains an HTML parameter of password and a value of j78G¬DFdg_24Mhw3.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2019-11-13 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (59.8th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

www.ise.io/casestudies/exploiting-soho-routers/ (Third Party Advisory, Mitigation)
www.ise.io/soho_service_hacks/ (Third Party Advisory, Mitigation)
www.ise.io/wp-content/uploads/2017/07/soho_techreport.pdf (Third Party Advisory)

Frequently asked questions

What is CVE-2013-3366?: CVE-2013-3366 is a high-severity vulnerability in Trendnet Tew-812dru, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2019-11-13.
How severe is CVE-2013-3366?: High severity. CVSS v3 base score is 8.8 out of 10.