BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption (CVE-2026-81532) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-81532

BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption

Answer in brief

CVE-2026-81532 records a Unknown severity vulnerability in BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption. The current sources do not mark it as known exploited. The current feed maps MongoDB/BI Connector ODBC Driver (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps MongoDB/BI Connector ODBC Driver (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
MongoDB/BI Connector ODBC Drivergeneric	>=0 <1.4.10	1.4.10

Recommended response

Check inventory. Check lockfiles and deployed manifests for MongoDB/BI Connector ODBC Driver.
Review the reported fix. Update MongoDB/BI Connector ODBC Driver to 1.4.10 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.