Medium severity · published Jan 27, 2026
CVE-2025-14911
Integer Overflow in GridFS chunkSize Leading to Heap Allocation Failure
6.5
CVSS
0.3%
EPSS
No
On KEV
Description
User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
MongoDB · MongoDB
before 2.1.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-14911
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-14911
jira.mongodb.org
https://jira.mongodb.org/browse/CDRIVER-6125
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