Vulnerability Intelligence Report
Zlib compressed protocol header length confusion may allow memory read
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.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
8.7
HIGH
EPSS Probability:83.01%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-130 ↗CWE-130: Improper Handling of Length Parameter Inconsistency
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| MongoDB Inc. | MongoDB Server | 8.2 < 8.2.3 (affected), 8.0 < 8.0.17 (affected), 7.0 < 7.0.28 (affected), 6.0 < 6.0.27 (affected), 5.0 < 5.0.32 (affected), 4.4 < 4.4.30 (affected), 4.2 (affected), 4.0 (affected), 3.6 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
83.007%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MongoDB, Inc. · Vendor · USA |
| Reserved | 2025-12-17T18:56:21 |
| Published | 2025-12-19T11:00:22 |
| Last Updated | 2026-02-26T16:07:25 |
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