CVE-2010-20112 - CVE House
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Status published Critical CVE-2010-20112

Amlibweb NetOpacs webquery.dll Stack Buffer Overflow

Vulnerability Description

Amlib’s NetOpacs webquery.dll contains a stack-based buffer overflow vulnerability triggered by improper handling of HTTP GET parameters. Specifically, the application fails to enforce bounds on input supplied to the app parameter, allowing excessive data to overwrite memory structures including the Structured Exception Handler (SEH). Additionally, malformed parameter names followed by an equals sign may result in unintended control flow behavior. This vulnerability is exposed through IIS and affects legacy Windows deployments

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • aushack

Affected Vendor

Affected Software

Amlibweb Library Management System
Vulnerable Versions:
*

Timeline

Official Publish: August 21st, 2025
Last Modified: April 7th, 2026
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)