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Fencer Vulns
high 7.5

CVE-2025-14847 kev in the critical feed json

Zlib compressed protocol header length confusion may allow memory read

published 2025-12-19 10 mo ago modified 2026-06-17 4 mo ago also BIT-mongodb-2025-14847 , EUVD-2025-204529

cvss
7.5
version 3.1, CNA
cisa kev
Exploited
added 2025-12-29
epss
83.2%
EPSS 83.2% chance of exploitation in 30 days, percentile 99.6%
public exploits
1
Metasploit, plus a Nuclei check

Summary

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.

Patch / fix

cisa 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.

  • bitnami mongodb 4.4.30, 5.0.32, 6.0.27, 7.0.28, 8.0.17, 8.2.3
  • MongoDB Inc. MongoDB Server 4.4.30, 5.0.32, 6.0.27, 7.0.28, 8.0.17, 8.2.3
  • mongodb Ubuntu Pro 18.04 LTS 1:3.6.3-0ubuntu1.4+esm2
  • mongodb Ubuntu Pro 20.04 LTS 1:3.6.9+really3.6.8+90~g8e540c0b6d-0ubuntu5.3+esm1

ubuntu advisories UBUNTU-CVE-2025-14847

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-218-01 updated cvss 7.5

ABB Ability Zenon

  • ABB Ability Zenon /all IIoT services with MongoDB 4.2
    affected: mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. First public exploit (Metasploit auxiliary/scanner/mongodb/cve_2025_14847_mongobleed)
  2. Published
  3. Added to CISA KEV
  4. CISA SSVC: exploitation active
  5. CISA patch deadline

Known exploited

Added
10 mo ago
Patch by
2026-01-19 (9 mo ago)
Ransomware
Not known
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.
Vendor, product
MongoDB, MongoDB and MongoDB Server
CISA name
MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
partial
Assessed
10 mo ago

Exploit prediction

83.22% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit auxiliary/scanner/mongodb/cve_2025_14847_mongobleed MongoDB Memory Disclosure (CVE-2025-14847) - Mongobleed metasploit auxiliary, normal rank, 2025-12-19
  • Nuclei template MongoDB Server - Information Disclosure (MongoBleed) nuclei detection template
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-14847-detection-script-heap-memory-exposure-in-mongodb-server referenced PoC, tagged "exploit" by a source, unverified
  • vicarius.io https://www.vicarius.io/vsociety/posts/cve-2025-14847-mitigation-script-heap-memory-exposure-in-mongodb-server referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.7 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
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 4.0 8.7 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
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami mongodb
>=4.4.0, <4.4.30
>=5.0.0, <5.0.32
>=6.0.0, <6.0.27
>=7.0.0, <7.0.28
>=8.0.0, <8.0.17
>=8.2.0, <8.2.3
4.4.30
5.0.32
6.0.27
7.0.28
8.0.17
8.2.3

Affected products

  • MongoDB Inc. MongoDB Server

Classification

Weakness
  • CWE-130 Improper Handling of Length Parameter Inconsistency
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.