CVE-2025-14847

Published Dec 19, 2025

Last updated 3 months ago

Exploit known CVSS high 8.7

MongoDB

Zlib

Splunk

Cloud

Database

Overview

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.
Source: cna@mongodb.com
NVD status: Analyzed
Products: mongodb

Risk scores

CVSS 4.0

Type: Secondary
Base score: 8.7
Impact score: -
Exploitability score: -
Vector string: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity: HIGH

CVSS 3.1

Type: Secondary
Base score: 7.5
Impact score: 3.6
Exploitability score: 3.9
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability
Exploit added on: Dec 29, 2025
Exploit action due: Jan 19, 2026
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

cna@mongodb.com: CWE-130

Hype score: Not currently trending

Configurations

[
  {
    "nodes": [
      {
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "2FCC5203-4E5E-4B2B-86A1-FD47A097013C",
            "versionEndExcluding": "4.4.30",
            "versionStartIncluding": "3.6.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*",
            "matchCriteriaId": "CCD1EB22-51EA-4ABC-9E0B-99520670133B",
            "versionEndExcluding": "5.0.32",
            "versionStartIncluding": "5.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "41ECB5AB-E6D0-412E-802F-839D53076677",
            "versionEndExcluding": "6.0.27",
            "versionStartIncluding": "6.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "5C9277BB-90FC-4A57-9028-DD57322F1D44",
            "versionEndExcluding": "7.0.28",
            "versionStartIncluding": "7.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "2F4D674D-CBC0-4412-AF68-6FED8A6394C3",
            "versionEndExcluding": "8.0.17",
            "versionStartIncluding": "8.0.0",
            "vulnerable": true
          },
          {
            "criteria": "cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*",
            "matchCriteriaId": "4302991B-E6CF-4E7B-9B24-BD2355C6F393",
            "versionEndExcluding": "8.2.3",
            "versionStartIncluding": "8.2.0",
            "vulnerable": true
          }
        ],
        "negate": false,
        "operator": "OR"
      }
    ]
  }
]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 4.0

CVSS 3.1

Known exploits

Weaknesses

Social media

Configurations

Related CVEs

References