CVE-2019-13336

Name: CVE-2019-13336
Creator: NVD / NIST
Published: 2019-10-08T13:15:15.157+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.86%

Last modified Jun 17, 2026

CVE-2019-13336 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The dbell Wi-Fi Smart Video Doorbell DB01-S Gen 1 allows remote attackers to launch commands with no authentication verification via TCP port 81, because the loginuse and loginpass parameters to openlock.cgi can have arbitrary values. NOTE: the vendor's position is that this product reached end of life in 2016.. EPSS estimates a 2.86% chance of exploitation in the next 30 days.

Description

The dbell Wi-Fi Smart Video Doorbell DB01-S Gen 1 allows remote attackers to launch commands with no authentication verification via TCP port 81, because the loginuse and loginpass parameters to openlock.cgi can have arbitrary values. NOTE: the vendor's position is that this product reached end of life in 2016.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.86%

84.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Dbell	Db01-S Firmware	All versions

References

http://noahclements.com/Improper-Input-Validation-on-dbell-Smart-Doorbell-Can-Lead-To-Attackers-Remotely-Unlocking-Door/Exploit, Third Party Advisory
https://www.reddit.com/r/AskNetsec/comments/c9p22m/company_threatening_to_sue_me_if_i_publicly/Issue Tracking, Third Party Advisory
https://www.youtube.com/watch?v=SkTKt1nV57IThird Party Advisory
http://noahclements.com/Improper-Input-Validation-on-dbell-Smart-Doorbell-Can-Lead-To-Attackers-Remotely-Unlocking-Door/Exploit, Third Party Advisory
https://www.reddit.com/r/AskNetsec/comments/c9p22m/company_threatening_to_sue_me_if_i_publicly/Issue Tracking, Third Party Advisory
https://www.youtube.com/watch?v=SkTKt1nV57IThird Party Advisory

Timeline

Published: Oct 8, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-13336?

How severe is CVE-2019-13336?

CVE-2019-13336 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.86% probability of exploitation in the next 30 days.

How do I fix CVE-2019-13336?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-13336?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST