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CVE-2026-81532: CWE-121: Stack-based Buffer Overflow in MongoDB BI Connector ODBC Driver

0
High
VulnerabilityCVE-2026-81532cvecve-2026-81532cwe-121
Published: 08/28/2026 (08/28/2026, 20:26:05 UTC)
Source: CVE Database V5
Vendor/Project: MongoDB
Product: BI Connector ODBC Driver

Description

A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a positioned-cursor statement whose cursor name exceeds the size of an internal fixed-length buffer. Because the name length is not bounded before the driver builds its diagnostic message, memory adjacent to that buffer is overwritten with user-supplied content. This can terminate the hosting application process and may allow unintended code to run within it.

CVSS v4.0

Score 8.7high

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Vuln. Confidentiality
High
Vuln. Integrity
High
Vuln. Availability
High
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Technical Details

Data Version
5.2
Assigner Short Name
mongodb
Date Reserved
2026-08-26T22:32:57.937Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a9206c9acd9273b4963cf61

Added to database: 08/28/2026, 22:08:09 UTC

Last updated: 08/29/2026, 02:52:04 UTC

Views: 9

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