What is CVE-2013-3091?

CVE-2013-3091 is a critical-severity vulnerability in Belkin N300, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-07.

How severe is CVE-2013-3091?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Belkin N300

CVE-2013-3091

An Authentication Bypass vulnerability in Belkin N300 (F7D7301v1) router allows remote attackers to bypass authentication using "Javascript debugging."

Vulnerability class: Broken Authentication

Published 2020-02-07 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.037 (89.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000

Affected products

Belkin N300
Belkin N300 Firmware — versions 1.00.06

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

securityevaluators.com/knowledge/case_studies/routers/Vulnerability_Catalog.pdf (Broken Link)
securityevaluators.com/knowledge/case_studies/routers/belkin_n900.php (Third Party Advisory)
www.ise.io/research/studies-and-papers/belkin_n900/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2013-3091?: CVE-2013-3091 is a critical-severity vulnerability in Belkin N300, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-02-07.
How severe is CVE-2013-3091?: Critical severity. CVSS v3 base score is 9.8 out of 10.