# CVE-2025-6714: Incorrect Handling of incomplete data may prevent mongoS from Accepting New Connections

> Attackers can cause MongoDB mongos to reject new connections by sending incomplete data, requiring load balancer support configuration.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 7 Jul 2025
- **Updated:** 7 Jul 2025
- **Also known as:** BIT-mongodb-2025-6714, GHSA-4cp7-9f6j-9x6f, MINI-4667-mp9v-8qrf, MINI-v9mm-mc56-3q63, UBUNTU-CVE-2025-6714

## What is CVE-2025-6714?

CVE-2025-6714 is a high-severity denial of service vulnerability in Mongodb Mongodb, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

MongoDB Server's mongos component can become unresponsive to new connections due to incorrect handling of incomplete data. This affects MongoDB when configured with load balancer support. This issue affects MongoDB Server v6.0 prior to 6.0.23, MongoDB Server v7.0 prior to 7.0.20 and MongoDB Server v8.0 prior to 8.0.9

Required Configuration:

This affects MongoDB sharded clusters when configured with load balancer support for mongos using HAProxy on specified ports.

Weakness: CWE-834 (Excessive Iteration), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2025-6714?

1 open source package ship an affected version, including mongodb. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mongodb` | Bitnami | From 6.0.0 | 6.0.23, 7.0.20, 8.0.9 |

Products: Mongodb Mongodb.

## How do I fix CVE-2025-6714?

Upgrade mongodb to a fixed version for your release line: 6.0.23, 7.0.20 or 8.0.9.

## Is CVE-2025-6714 being exploited?

There is no known exploitation of CVE-2025-6714 in the wild and no public exploit code.

## Other vulnerabilities in Mongodb Mongodb

- [CVE-2025-14847](https://insights.sbomify.com/CVE-2025-14847/): MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency (high 8.7, exploited in the wild)
- [CVE-2026-82067](https://insights.sbomify.com/CVE-2026-82067/): Auth bypass in MongoDB Server (critical 9.2)
- [CVE-2026-13072](https://insights.sbomify.com/CVE-2026-13072/): MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption (critical 9.2)
- [CVE-2017-15535](https://insights.sbomify.com/CVE-2017-15535/): Denial of service in n/a (critical 9.1)
- [CVE-2026-18691](https://insights.sbomify.com/CVE-2026-18691/): Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-6714 and fix it if it is affected.

What it is: CVE-2025-6714 is a high-severity denial of service vulnerability in Mongodb Mongodb, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-6714 in the wild and no public exploit code.

Affected packages and fixed versions:
- mongodb (Bitnami): affected from 6.0.0; fixed in 6.0.23, 7.0.20, 8.0.9

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-6714/ (Markdown: https://insights.sbomify.com/CVE-2025-6714/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-6714
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-6714
- OSV: https://osv.dev/vulnerability/CVE-2025-6714

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-6714/
Summaries are generated and may contain mistakes; the official description above is the record.