CVE-2020-36658

Name: CVE-2020-36658
Creator: NVD / NIST
Published: 2023-01-27T05:15:12.973+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2020-36658 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. In Apache::Session::LDAP before 0.5, 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. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

In Apache::Session::LDAP before 0.5, 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. NOTE: this can, for example, be fixed in conjunction with the CVE-2020-16093 fix.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

0.44%

35.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Lemonldap-Ng	Apache\	< 0.5	Session\
Debian	Debian Linux	10.0	—

References

https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561fPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00024.htmlMailing List, Third Party Advisory
https://github.com/LemonLDAPNG/Apache-Session-LDAP/commit/490722b71eed1ed1ab33d58c78578f23e043561fPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/01/msg00024.htmlMailing List, Third Party Advisory

Timeline

Published: Jan 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-36658?

How severe is CVE-2020-36658?

CVE-2020-36658 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2020-36658?

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-2020-36658?

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

Scan your code now

Source: NVD / NIST