CVE-2016-20045
8.4 · HIGHOverview
CVE-2016-20045 is a high-severity vulnerability affecting hnb_project hierarchical_notebook. It was published on March 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
HNB Organizer 1.9.18-10 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying an oversized argument to the -rc command-line parameter. Attackers can craft a malicious input string exceeding 108 bytes containing shellcode and a return address to overwrite the stack and achieve code execution.
Remediation
Check the references section for vendor advisories and patches from hnb_project. Update hierarchical_notebook to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| hnb_project | hierarchical_notebook | 0 | Affected |
Frequently Asked Questions
What is CVE-2016-20045?
CVE-2016-20045 is a high-severity vulnerability affecting hnb_project hierarchical_notebook. It was published on March 28, 2026 and has a CVSS 3.1 base score of 8.4 (HIGH).
How severe is CVE-2016-20045?
This vulnerability has a CVSS 3.1 base score of 8.4, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2016-20045?
Check the references section for vendor advisories and patches from hnb_project. Update hierarchical_notebook to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2016-20045?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-20045 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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