CVE-2025-14847—MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

Vulnerability Name

MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

Description

MongoDB Server contains an improper handling of length parameter inconsistency vulnerability in Zlib compressed protocol headers. This vulnerability may allow a read of uninitialized heap memory by an unauthenticated client.

Known To Be Used in Ransomware Campaigns?

Ransomware Status:

Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

• This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://jira.mongodb.org/browse/SERVER-115508
• https://nvd.nist.gov/vuln/detail/CVE-2025-14847

Related News Articles

• New ChocoPoC RAT Targets Vulnerability Researchers via Fake PoC Exploit ReposJuly 2, 2026
• CISA orders feds to patch MongoBleed flaw exploited in attacksDecember 30, 2025

Related Weaknesses

• CWE-130