CVE-2025-14847— Zlib compressed protocol header length confusion may allow memory read
Quick assessment
Affected
MongoDB Inc. MongoDB Server
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
MongoDB Server是美国MongoDB公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server存在安全漏洞，该漏洞源于Zlib压缩协议头长度不匹配，可能导致读取未初始化内存。以下版本受到影响：v7.0 7.0.28之前版本、v8.0 8.0.17之前版本、v8.2 8.2.3之前版本、v6.0 6.0.27之前版本、v5.0 5.0.32之前版本、v4.4 4.4.30之前版本、v4.2 4.2.0及之后版本、v4.0
Public Exploits 1
Metasploit · 1
cve_2025_14847_mongobleed.rb [auxiliary]
In-the-Wild Activity Observed
cisa_kev · confirmed
Possible ATT&CK Techniques 1 AI
T1552 · Unsecured Credentials
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I. Basic Information for CVE-2025-14847
Vulnerability Information
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Vulnerability Title
Zlib compressed protocol header length confusion may allow memory read
Source: CVE Program / CVE List V5
Vulnerability 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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
长度参数不一致性处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB Server是美国MongoDB公司的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server存在安全漏洞，该漏洞源于Zlib压缩协议头长度不匹配，可能导致读取未初始化内存。以下版本受到影响：v7.0 7.0.28之前版本、v8.0 8.0.17之前版本、v8.2 8.2.3之前版本、v6.0 6.0.27之前版本、v5.0 5.0.32之前版本、v4.4 4.4.30之前版本、v4.2 4.2.0及之后版本、v4.0
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| MongoDB Inc. | MongoDB Server | 8.2 ~ 8.2.3 | - |
|
II. Public POCs for CVE-2025-14847
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | MongoDB 内存泄露漏洞 (CVE-2025-14847) 检测工具 | https://github.com/onewinner/CVE-2025-14847 | POC Details |
| 2 | poc for CVE-2025-14847 | https://github.com/ProbiusOfficial/CVE-2025-14847 | POC Details |
| 3 | a critical memory disclosure vulnerability in MongoDB's zlib compression handling. This tool allows security researchers to extract sensitive data from vulnerable MongoDB instances. | https://github.com/cybertechajju/CVE-2025-14847_Expolit | POC Details |
| 4 | None | https://github.com/KingHacker353/CVE-2025-14847_Expolit | POC Details |
| 5 | CVE-2025-14847 | https://github.com/Ashwesker/Blackash-CVE-2025-14847 | POC Details |
| 6 | MongoDB CVE-2025-14847 Heap Memory Leak Scanner | OP_COMPRESSED zlib Vulnerability | Bug Bounty & Red Team Tool | https://github.com/Black1hp/mongobleed-scanner | POC Details |
| 7 | golang test tool for mongobleed (cve-2025-14847) | https://github.com/nma-io/mongobleed | POC Details |
| 8 | None | https://github.com/saereya/CVE-2025-14847---MongoBleed | POC Details |
| 9 | The script focuses on safe artifact acquisition first, followed by optional on-host analysis, and produces a portable, hashed forensic archive suitable for offline investigation on a forensic workstation. | https://github.com/JemHadar/MongoBleed-DFIR-Triage-Script-CVE-2025-14847 | POC Details |
| 10 | Explot, Lab, Scanner - external and docker container, for SMongobleed-CVE-2025-14847 plus phoenix security uploader | https://github.com/franksec42/mongobleed-exploit-CVE-2025-14847 | POC Details |
| 11 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2025/CVE-2025-14847.yaml | POC Details |
| 12 | CVE-2025-14847 | https://github.com/Ashwesker/Ashwesker-CVE-2025-14847 | POC Details |
| 13 | CVE-2025-14847 – MongoDB Unauthenticated Memory‑Leak Exploit | https://github.com/lincemorado97/CVE-2025-14847 | POC Details |
| 14 | Exploit lab, docker and code scanner for mongobleed Vulnerability CVE-2025-14847 plus Phoenix Security Sync tools | https://github.com/Security-Phoenix-demo/mongobleed-exploit-CVE-2025-14847 | POC Details |
| 15 | Academic proof-of-concept demonstrating CVE-2025-14847 for authorized security research. | https://github.com/chinaxploiter/CVE-2025-14847-PoC | POC Details |
| 16 | Detect exposed MongoDB instances and CVE-2025-14847 "MongoBleed" risks — Zero-Trust Python scanner | https://github.com/14mb1v45h/CYBERDUDEBIVASH-MONGODB-DETECTOR-v2026 | POC Details |
| 17 | MongoBleed: CVE-2025-14847 Memory Leak Discovery Tool | https://github.com/kuyrathdaro/cve-2025-14847 | POC Details |
| 18 | CVE-2025-14847 (MongoBleed) | https://github.com/joshuavanderpoll/CVE-2025-14847 | POC Details |
| 19 | Context-Aware Memory Leak Scanner & Exploit for CVE-2025-14847. | https://github.com/tunahantekeoglu/MongoDeepDive | POC Details |
| 20 | Remake of CVE-2025-14847 MongoDB vulnerability demonstration | https://github.com/vfa-tuannt/CVE-2025-14847 | POC Details |
| 21 | Burp Suite extension to detect CVE-2025-14847 (MongoBleed) via manual leak tests from a dedicated UI tab. | https://github.com/j0lt-github/mongobleedburp | POC Details |
| 22 | CVE-2025-14847 MongoBleed - MongoDB Memory Leak Vulnerability PoC | https://github.com/FurkanKAYAPINAR/CVE-2025-14847-MongoBleed-Exploit | POC Details |
| 23 | This repo contains my python script version of CVE-2025-14847 (MongoBleed) | https://github.com/NoNameError/MongoBLEED---CVE-2025-14847-POC- | POC Details |
| 24 | None | https://github.com/Rishi-kaul/CVE-2025-14847-MongoBleed | POC Details |
| 25 | MongoBleed CVE-2025-14847 Vulnerability Checker | https://github.com/Systemhaus-Schulz/MongoBleed-CVE-2025-14847 | POC Details |
| 26 | CVE-2025-14847 exploit for MongoDB heap memory disclosure | https://github.com/demetriusford/mongobleed | POC Details |
| 27 | MongoBleed (CVE-2025-14847) Lab & PoC : A complete educational environment to reproduce the critical unauthenticated memory leak in MongoDB. Includes a vulnerable Docker container with multi-database seeding (PII, API keys) and a Python exploit to demonstrate data extraction. Ideal for security research and awareness. 1-day analysis. | https://github.com/ElJoamy/MongoBleed-exploit | POC Details |
| 28 | Mongobleed Detector CVE-2025-14847 | https://github.com/keraattin/Mongobleed-Detector-CVE-2025-14847 | POC Details |
| 29 | CVE-2025-14847 MongoDB Memory Leak Exploit | https://github.com/waheeb71/CVE-2025-14847 | POC Details |
| 30 | Full automation check for CVE-2025-14847 MonogBleed- Finds origin IP and tests for exploit. | https://github.com/CadGoose/MongoBleed-CVE-2025-14847-Fully-Automated-scanner | POC Details |
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Other References for CVE-2025-14847 (1)
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V. Comments for CVE-2025-14847
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