CVE-2025-14847 — MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability
CVE-2025-14847: MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | MongoDB |
| Product | MongoDB and MongoDB Server |
| Date added | 2025-12-29 |
| Due date | 2026-01-19 |
| Ransomware campaign use | Unknown |
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.
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-14847
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog