How severe is CVE-2014-3999?

CVE-2014-3999 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2014-3999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3999?

CVE-2014-3999 affects Horde Horde Ldap. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2014-3999 published?

CVE-2014-3999 was published on 2018-04-10 and last updated on 2026-06-17.

CVE-2014-3999

CVE-2014-3999 is a high-severity vulnerability in Horde Horde Ldap with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Horde Horde Ldap
Published: 2018-04-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2014-3999?: CVE-2014-3999 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2014-3999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3999?: CVE-2014-3999 affects Horde Horde Ldap. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2014-3999 published?: CVE-2014-3999 was published on 2018-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:horde:horde_ldap:*:*:*:*:*:horde:*:*

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