CVE-2026-96746

HIGH CVSS 4.0: 8.3
Updated Sep 25, 2026
MongoDB
Parameter Value
CVSS 8.3 (HIGH)
Type CWE-787 (Out-of-bounds Write)
Vendor MongoDB
Public PoC No

An out-of-bounds write in the connection-monitoring logic of the MongoDB C Driver may allow an unauthenticated party who controls name resolution and the responses of the hosts named in a client's connection string to write beyond the end of a heap buffer. This may cause the application using the driver to terminate unexpectedly.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Weakness Type (CWE)