CVE-2016-6531

Name: CVE-2016-6531
Creator: NVD / NIST
Published: 2016-09-24T10:59:03.65+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.49%

Last modified Jun 17, 2026

CVE-2016-6531 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Open Dental 16.1 and earlier has a hardcoded MySQL root password, which allows remote attackers to obtain administrative access by leveraging access to intranet TCP port 3306. NOTE: the vendor disputes this issue, stating that the "vulnerability note ... EPSS estimates a 2.49% chance of exploitation in the next 30 days.

Description

Open Dental 16.1 and earlier has a hardcoded MySQL root password, which allows remote attackers to obtain administrative access by leveraging access to intranet TCP port 3306. NOTE: the vendor disputes this issue, stating that the "vulnerability note ... is factually false ... there is indeed a default blank password, but it can be changed ... We recommend that users change it, each customer receives direction.

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

2.49%

82.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-255

Affected Software

Vendor	Product	Versions
Opendental	Opendental	<= 16.1

References

http://www.kb.cert.org/vuls/id/619767Third Party Advisory, US Government Resource
http://www.kb.cert.org/vuls/id/GWAN-ACVSBMThird Party Advisory, US Government Resource
http://www.securityfocus.com/bid/92780
http://www.kb.cert.org/vuls/id/619767Third Party Advisory, US Government Resource
http://www.kb.cert.org/vuls/id/GWAN-ACVSBMThird Party Advisory, US Government Resource
http://www.securityfocus.com/bid/92780

Timeline

Published: Sep 24, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-6531?

How severe is CVE-2016-6531?

CVE-2016-6531 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.49% probability of exploitation in the next 30 days.

How do I fix CVE-2016-6531?

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-2016-6531?

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

Scan your code now

Source: NVD / NIST