Buffer overflow in Amlib Amlibweb Library Management System
CVE-2010-20112
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
Vulnerability class: Buffer Overflow
Published · last modified .
EPSS exploit prediction
EPSS: 0.011 (64.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/w… (exploit)
- www.exploit-db.com/exploits/16793 (exploit)
- www.fortiguard.com/encyclopedia/ips/24002 (third-party-advisory)
- advisories.checkpoint.com/defense/advisories/public/2013/cpai-2013-1344.html (third-party-advisory)
- www.amlib.co.uk/product/product.aspx (product)
- www.vulncheck.com/advisories/amlibweb-netopacs-stack-buffer-overflow (third-party-advisory)
Frequently asked questions
- What is CVE-2010-20112?
- CVE-2010-20112 is a vulnerability in Amlib Amlibweb Library Management System, classified under Stack-based Buffer Overflow. Published 2025-08-21.
- Is CVE-2010-20112 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.