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CVE-2025-14847

Good to know:

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Date: December 19, 2025

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.

Severity Score

Related Resources (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-14847
https://jira.mongodb.org/browse/SERVER-115508
https://www.mend.io/vulnerability-database/CVE-2025-14847

Severity Score

Weakness Type (CWE)

Improper Handling of Length Parameter Inconsistency

CWE-130

Top Fix

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Upgrade Version

Upgrade to version https://github.com/mongodb/mongo.git - r8.2.3;https://github.com/mongodb/mongo.git - r8.0.17;https://github.com/mongodb/mongo.git - r7.0.28;https://github.com/mongodb/mongo.git - r6.0.27;https://github.com/mongodb/mongo.git - r5.0.32;https://github.com/mongodb/mongo.git - r4.4.30

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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