CVE-2016-20045

HIGH

HNB Organizer 1.9.18-10 Local Buffer Overflow via -rc Parameter

Title source: cna

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.

Exploits (1)

exploitdb WORKING POC

by Juan Sacco · pythonlocallinux

https://www.exploit-db.com/exploits/40025

View Code ZIP pw:eip

References (3)

[Exploit] https://www.exploit-db.com/exploits/40025

[Product] http://hnb.sourceforge.net/

[Third Party Advisory] https://www.vulncheck.com/advisories/hnb-organizer-10-local-buffer-overflow-via-rc-parameter

Scores

CVSS v3 8.4

EPSS 0.0002

EPSS Percentile 4.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-787

Status published

Products (2)

hnb/HNB 1.9.18-10

hnb_project/hierarchical_notebook < 1.9.18-10

Published Mar 28, 2026

Tracked Since Mar 29, 2026