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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.

PUBLISHED Reserved 2026-03-28 | Published 2026-03-28 | Updated 2026-03-30 | Assigner VulnCheck




HIGH: 8.6CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Out-of-bounds Write

Product status

1.9.18-10
affected

Credits

Juan Sacco - http://www.exploitpack.com - jsacco@exploitpack.com finder

References

www.exploit-db.com/exploits/40025 (ExploitDB-40025) exploit

hnb.sourceforge.net/ (Official Product Homepage) product

www.vulncheck.com/...-local-buffer-overflow-via-rc-parameter (VulnCheck Advisory: HNB Organizer 1.9.18-10 Local Buffer Overflow via -rc Parameter) third-party-advisory

cve.org (CVE-2016-20045)

nvd.nist.gov (CVE-2016-20045)

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