CVE-2025-6712: MongoDB Server Vulnerable to High Memory Usage and Potential Crash
This blog post discusses a critical vulnerability, CVE-2025-6712, affecting MongoDB Server. This flaw can lead to excessive memory consumption and, ultimately, server crashes, impacting availability.
Vulnerability Details
- CVE ID: CVE-2025-6712
- Description: MongoDB Server may experience disruption due to high memory usage, potentially leading to a server crash. This is caused by inefficiencies in memory management during internal operations. When internal processes run longer than expected, memory consumption increases, potentially impacting server stability.
- CVSS Score: 6.5 (Medium)
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS Explanation: A user with low privileges can trigger a network-based attack that causes a high impact on availability. The attack is easy to execute. Confidentiality and Integrity are not impacted.
- Exploit Requirements: Requires network access and low-level user privileges within the MongoDB system.
- Affected Product: MongoDB Server versions prior to 8.0.10
- CWE: CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')
- CWE Explanation: This means that the server doesn't properly manage its resources (in this case, memory). An attacker can exploit this by causing the server to consume excessive resources, leading to a denial-of-service condition.
Timeline of Events
- 2025-07-07: CVE Published
- 2025-07-08: Analysis Completed
Exploitability & Real-World Risk
This vulnerability presents a significant risk to MongoDB deployments. An attacker with minimal access can potentially trigger a memory exhaustion condition, leading to a denial of service. This can disrupt critical applications that rely on the database and cause financial and reputational damage. Since the exploit requires network access, it is essential to safeguard the network and implement robust access controls.
Recommendations
- Upgrade: Upgrade to MongoDB Server version 8.0.10 or later.
- Monitor: Monitor memory usage to detect unusual patterns.
- Access Control: Implement strict access control policies to limit who can interact with the MongoDB server.
Technical Insight
The vulnerability lies in how MongoDB Server manages memory during certain internal processes. If these processes take longer than expected, they can allocate more memory than necessary. This inefficient memory management can lead to memory exhaustion, potentially crashing the server.
Credit to Researcher(s)
MongoDB Vulnerability Team
References
Tags
#MongoDB #CVE-2025-6712 #MemoryLeak #DenialOfService #ServerCrash #CWE-400
Summary: MongoDB Server versions prior to 8.0.10 are susceptible to high memory usage caused by inefficient memory management during internal operations, potentially leading to server crashes and denial of service. Upgrade to version 8.0.10 or later to mitigate this risk.
CVE ID: CVE-2025-6712
Risk Analysis: Successful exploitation can lead to a denial-of-service condition, disrupting applications that rely on the database and potentially causing financial and reputational damage.
Recommendation: Upgrade to MongoDB Server version 8.0.10 or later to address the memory management issues. Additionally, monitor memory usage and implement strong access control policies.
Timeline
- 2025-07-07: CVE Published
- 2025-07-08: Analysis Completed