CVE-2014-3971

The CmdAuthenticate::_authenticateX509 function in db/commands/authentication_commands.cpp in mongod in MongoDB 2.6.x before 2.6.2 allows remote attackers to cause a denial of service (daemon crash) by attempting authentication with an invalid X.509 client certificate.

Published: 2014-12-25 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3971 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.46%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-3971

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.03% 1.46% +0.42%
2 2026-05-13 1.10% 1.03% -0.07%
3 2026-01-18 — 1.10% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3971

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2014-3971

OS Trackers for CVE-2014-3971

vendor priority summary link
ubuntu medium CVE-2014-3971 medium priority: Ubuntu including 1 source packages (mongodb), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): not-affected 4, released 1. https://ubuntu.com/security/CVE-2014-3971

Affected software / configurations for CVE-2014-3971

Vendor Product Version Raw CPE
mongodb mongodb 2.6.0 cpe:2.3:a:mongodb:mongodb:2.6.0:*:*:*:*:*:*:*
mongodb mongodb 2.6.1 cpe:2.3:a:mongodb:mongodb:2.6.1:*:*:*:*:*:*:*

References for CVE-2014-3971

cvelogic Threat Intelligence