CVE-2025-14847
CVSS v3
7.5
HIGH
EPSS Score
64.8 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Server v5.0 versions prior to 5.0.32, MongoDB Server v4.4 versions prior to 4.4.30, MongoDB Server v4.2 versions greater than or equal to 4.2.0, MongoDB Server v4.0 versions greater than or equal to 4.0.0, and MongoDB Server v3.6 versions greater than or equal to 3.6.0.
CISA Known Exploited Vulnerability
- Date Added
- 2025-12-29
- Patch Due Date
- 2026-01-19
- Ransomware Use
- Unknown
Technical details
- Published
- 2025-12-19
Frequently asked questions
What is CVE-2025-14847?
Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Server v5.0 versions prior to 5.0.32, MongoDB Server v4.4 versions prior to 4.4.30, MongoDB Server v4.2 versions greater than or equal to 4.2.0, MongoDB Server v4.0 versions greater than or equal to 4.0.0, and MongoDB Server v3.6 versions greater than or equal to 3.6.0.
Is CVE-2025-14847 actively exploited?
Yes. CVE-2025-14847 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 1/19/2026.
What is the CVSS score for CVE-2025-14847?
CVE-2025-14847 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2025-14847 affecting your environment?
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