CVE-2020-16093

Name: CVE-2020-16093
Creator: NVD / NIST
Published: 2022-07-18T00:15:08.193+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.56%

Last modified Jun 17, 2026

CVE-2020-16093 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In LemonLDAP::NG (aka lemonldap-ng) through 2.0.8, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.

Description

In LemonLDAP::NG (aka lemonldap-ng) through 2.0.8, validity of the X.509 certificate is not checked by default when connecting to remote LDAP backends, because the default configuration of the Net::LDAPS module for Perl is used.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.56%

42.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions	Update
Lemonldap-Ng	Lemonldap\	<= 2.0.8	Ng
Debian	Debian Linux	10.0	—

References

https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2250Exploit, Issue Tracking, Patch, Third Party Advisory
https://lemonldap-ng.org/downloadVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00027.htmlMailing List, Third Party Advisory
https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2250Exploit, Issue Tracking, Patch, Third Party Advisory
https://lemonldap-ng.org/downloadVendor Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00027.htmlMailing List, Third Party Advisory

Timeline

Published: Jul 18, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16093?

How severe is CVE-2020-16093?

CVE-2020-16093 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16093?

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-2020-16093?

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

Scan your code now

Source: NVD / NIST