CVE-2021-43145

Name: CVE-2021-43145
Creator: NVD / NIST
Published: 2022-02-04T15:15:12.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.94%

Last modified Jun 17, 2026

CVE-2021-43145 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. With certain LDAP configurations, Zammad 5.0.1 was found to be vulnerable to unauthorized access with existing user accounts.. EPSS estimates a 0.94% chance of exploitation in the next 30 days.

Description

With certain LDAP configurations, Zammad 5.0.1 was found to be vulnerable to unauthorized access with existing user accounts.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.94%

56.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Zammad	Zammad	5.0.1

References

https://zammad.com/de/advisories/zaa-2021-20Vendor Advisory
https://zammad.com/de/advisories/zaa-2021-20Vendor Advisory

Timeline

Published: Feb 4, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43145?

With certain LDAP configurations, Zammad 5.0.1 was found to be vulnerable to unauthorized access with existing user accounts.

How severe is CVE-2021-43145?

CVE-2021-43145 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.94% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43145?

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-2021-43145?

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

Scan your code now

Source: NVD / NIST