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CVE-2026-120959
Published:November 03, 2026
Updated:November 04, 2026
A memory-handling flaw in the MongoDB Atlas SQL ODBC Driver can cause values returned for a query to be written outside the bounds of a buffer provided by the calling application. A party able to influence the values a query returns may cause data to be placed at an unintended location in the client application's memory, which may result in unintended modification of that memory or termination of the client process. Reaching this condition depends on a specific, application-chosen way of requesting several result rows at once.
Affected Packages
https://github.com/mongodb/mongo-odbc-driver.git (GITHUB):
Affected version(s) >=v1.3.0 <v3.0.1 || >=v2.0.0-alpha-libv1.0.0-alpha <v3.0.1 || =v3.0.0 <v3.0.1
Fix Suggestion:
Update to version v3.0.1
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CVSS v4
Base Score:
2.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Out-of-bounds Write
EPSS
Base Score:
0.22