How severe is CVE-2014-3971?

CVE-2014-3971 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-3971 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3971?

CVE-2014-3971 primarily affects Mongodb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3971?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3971 published?

CVE-2014-3971 was published on 2014-12-25 and last updated on 2026-06-17.

CVE-2014-3971

CVE-2014-3971 is a medium-severity vulnerability in Mongodb with a CVSS 2.0 base score of 5.0. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Mongodb
Published: 2014-12-25
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2014-3971?: CVE-2014-3971 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-3971 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3971?: CVE-2014-3971 primarily affects Mongodb. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3971?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3971 published?: CVE-2014-3971 was published on 2014-12-25 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:mongodb:mongodb:2.6.0:*:*:*:*:*:*:*
cpe:2.3:a:mongodb:mongodb:2.6.1:*:*:*:*:*:*:*

More vulnerabilities in Mongodb

CVE-2017-15535 — Critical (CVSS 9.1): MongoDB 3.4.x before 3.4.10, and 3.5.x-development, has a disabled-by-default configuration setting,…
CVE-2026-11933 — High (CVSS 8.8): A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents…
CVE-2026-8053 — High (CVSS 8.8): An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write…
CVE-2026-4148 — High (CVSS 8.8): A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who…
CVE-2024-1351 — High (CVSS 8.8): Under certain configurations of --tlsCAFile and tls.CAFile, MongoDB Server may skip peer certificate validation which…
CVE-2025-0755 — High (CVSS 8.4): The various bson_append functions in the MongoDB C driver library may be susceptible to buffer overflow when…

All CVEs affecting Mongodb →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →