MongoDB Mongo-c-driver up to 2.1.2 chunkSize Metadata denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MongoDB Mongo-c-driver up to 2.1.2. This impacts an unknown function of the component chunkSize Metadata Handler. This manipulation causes denial of service. The identification of this vulnerability is CVE-2025-14911. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in MongoDB Mongo-c-driver up to 2.1.2. Affected by this vulnerability is an unknown functionality of the component chunkSize Metadata Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container.

The weakness was shared by oblivionsage. It is possible to read the advisory at jira.mongodb.org. This vulnerability is known as CVE-2025-14911 since 12/18/2025. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 297412 (Linux Distros Unpatched Vulnerability : CVE-2025-14911), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.1.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (297412) and CERT Bund (WID-SEC-2026-0238). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Open Source MongoDB

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (mongodb): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 297412
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-14911

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mongo-c-driver 2.1.3

Timelineinfo

12/18/2025 CVE reserved
01/27/2026 +40 days Advisory disclosed
01/27/2026 +0 days VulDB entry created
01/31/2026 +4 days VulDB entry last update

Sourcesinfo

Advisory: jira.mongodb.org
Researcher: oblivionsage
Status: Confirmed

CVE: CVE-2025-14911 (🔒)
GCVE (CVE): GCVE-0-2025-14911
GCVE (VulDB): GCVE-100-343099
CERT Bund: WID-SEC-2026-0238 - MongoDB: Schwachstelle ermöglicht Denial of Service

Entryinfo

Created: 01/27/2026 20:55
Updated: 01/31/2026 21:07
Changes: 01/27/2026 20:55 (78), 01/28/2026 19:36 (7), 01/31/2026 21:07 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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