What is CVE-2017-11436?

CVE-2017-11436 is a critical-severity vulnerability in Dlink Dir-615, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2017-07-19.

How severe is CVE-2017-11436?

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

Vulnerability in Dlink Dir-615

CVE-2017-11436

D-Link DIR-615 before v20.12PTb04 has a second admin account with a 0x1 BACKDOOR value, which might allow remote attackers to obtain access via a TELNET connection.

Published 2017-07-19 · last modified 2026-06-17.

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: 0.020 (80.7th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000

Affected products

Dlink Dir-615

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

www.rootlabs.com.br/backdoor-dlink-dir-615/ (Third Party Advisory)

Frequently asked questions

What is CVE-2017-11436?: CVE-2017-11436 is a critical-severity vulnerability in Dlink Dir-615, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2017-07-19.
How severe is CVE-2017-11436?: Critical severity. CVSS v3 base score is 9.8 out of 10.