What is CVE-2014-3999?

CVE-2014-3999 is a high-severity vulnerability in Horde Ldap, classified under Improper Authentication. CVSS score: 8.1/10. Published 2018-04-10.

How severe is CVE-2014-3999?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Horde Ldap

CVE-2014-3999

The Horde_Ldap library before 2.0.6 for Horde allows remote attackers to bypass authentication by leveraging knowledge of the LDAP bind user DN.

Vulnerability class: Broken Authentication

Published 2018-04-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.5th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.024 · change: -0.000

Affected products

Horde Ldap

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.openwall.com/lists/oss-security/2014/06/14/1 (mailing-list, Mailing List)
bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
github.com/horde/horde/commit/4c3e18f1724ab39bfef10c189a5b52036a744d55 (Patch)
www.securityfocus.com/bid/68014 (VDB Entry, Third Party Advisory, vdb-entry)
marc.info/ (mailing-list, Mailing List)

Frequently asked questions

What is CVE-2014-3999?: CVE-2014-3999 is a high-severity vulnerability in Horde Ldap, classified under Improper Authentication. CVSS score: 8.1/10. Published 2018-04-10.
How severe is CVE-2014-3999?: High severity. CVSS v3 base score is 8.1 out of 10.