CVE-2019-5648

Name: CVE-2019-5648
Creator: NVD / NIST
Published: 2020-03-12T13:15:12.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.13%

Last modified Jun 17, 2026

CVE-2019-5648 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Authenticated, administrative access to a Barracuda Load Balancer ADC running unpatched firmware <= v6.4 allows one to edit the LDAP service configuration of the balancer and change the LDAP server to an attacker-controlled system, without having to re-enter LDAP credentials. These steps can be used by any authenticated administrative user to expose the LDAP credentials configured in the LDAP connector over the network.. EPSS estimates a 1.13% chance of exploitation in the next 30 days.

Description

Authenticated, administrative access to a Barracuda Load Balancer ADC running unpatched firmware <= v6.4 allows one to edit the LDAP service configuration of the balancer and change the LDAP server to an attacker-controlled system, without having to re-enter LDAP credentials. These steps can be used by any authenticated administrative user to expose the LDAP credentials configured in the LDAP connector over the network.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.13%

62.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Barracuda	Load Balancer Adc Firmware	<= 6.4

References

https://blog.rapid7.com/2020/03/05/r7-2019-39-cve-2019-5648-ldap-credential-exposure-in-barracuda-load-balancer-adc-fixed/Exploit, Third Party Advisory
https://blog.rapid7.com/2020/03/05/r7-2019-39-cve-2019-5648-ldap-credential-exposure-in-barracuda-load-balancer-adc-fixed/Exploit, Third Party Advisory

Timeline

Published: Mar 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-5648?

How severe is CVE-2019-5648?

CVE-2019-5648 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.

How do I fix CVE-2019-5648?

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-2019-5648?

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

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Source: NVD / NIST