CVE-2020-16093 json
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 LD…
published 2022-07-17 4 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8060
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- lemonldap-ng Debian 14, Debian 13, Debian 12 2.0.9+ds-1
debian advisories DEBIAN-CVE-2020-16093
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- gitlab.ow2.org https://gitlab.ow2.org/lemonldap-ng/lemonldap-ng/-/issues/2250 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
gitlab.ow2.org
/lemonldap-ng/lemonldap-ng/-/issues/2250
exploit, issue-tracking, patch, third-party-advisory
-
lemonldap-ng.org
/download
vendor-advisory
-
lists.debian.org
/debian-lts-announce/2023/01/msg00027.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-16093
- NVD CVE-2020-16093
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.