CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Jan 19, 2026
High
CISA KEVCVE-2025-14847
MongoDB—MongoDB and MongoDB Server
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
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
Vulnerability Overview
- Severity
- High
- CISA KEV
- Yes
- Ransomware
- Unknown
- Published
- Dec 29, 2025
- KEV Added
- Dec 29, 2025
- Due Date
- Jan 19, 2026
- Related Articles
- 0
Vendor
MongoDB
MongoDB and MongoDB Server