What is CVE-2017-8415?

CVE-2017-8415 is a critical-severity vulnerability in Dlink Dcs-1100, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2019-07-02.

How severe is CVE-2017-8415?

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

Is CVE-2017-8415 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Dlink Dcs-1100

CVE-2017-8415

An issue was discovered on D-Link DCS-1100 and DCS-1130 devices. The device has a custom telnet daemon as a part of the busybox and retrieves the password from the shadow file using the function getspnam at address 0x00053894. Then performs a crypt operation on the password retrieved from the user at address 0x000538E0 and performs a strcmp at address 0x00053908 to check if the password is correct or incorrect. However, the /etc/shadow file is a part of CRAM-FS filesystem which means that the user cannot change the password and hence a hardcoded hash in /etc/shadow is used to match the credentials provided by the user. This is a salted hash of the string "admin" and hence it acts as a password to the device which cannot be changed as the whole filesystem is read only.

Published 2019-07-02 · 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: 0.039 (90.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

Public proof-of-concept exploits

ethanhunnt/IoT_

References

seclists.org/bugtraq/2019/Jun/8 (mailing-list, Mailing List, Third Party Advisory)
packetstormsecurity.com/files/153226/Dlink-DCS-1130-Command-Injection-CSRF-Stac… (VDB Entry, Third Party Advisory)
github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Dlink_DCS_1130_security.p… (Third Party Advisory, Not Applicable)

Frequently asked questions

What is CVE-2017-8415?: CVE-2017-8415 is a critical-severity vulnerability in Dlink Dcs-1100, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2019-07-02.
How severe is CVE-2017-8415?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-8415 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.