CVE-2026-120959

MongoDB Atlas SQL ODBC Driver uses ignored SQLBindCol BufferLength as fixed-width row-array stride, causing out-of-bounds writes

Published Nov 3, 2026 CVSS 4.0 · 2.1 Low EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb atlas Sql
Vendors & Products Mongodb
Mongodb atlas Sql
Type Values Removed Values Added
Description 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.
Title MongoDB Atlas SQL ODBC Driver uses ignored SQLBindCol BufferLength as fixed-width row-array stride, causing out-of-bounds writes
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L'}

cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mongodb
Published
Updated
Nov 6, 2026, 7:43 PM
Reserved
Nov 3, 2026, 3:56 AM
Status
Awaiting Analysis
Published
Nov 3, 2026, 9:17 PM
Modified
Nov 6, 2026, 8:20 PM