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CVE-2016-20045

31
FAUCET Score

CVE-2016-20045 details a local buffer overflow vulnerability in HNB Organizer version 1.9.18-10. Local attackers can exploit this by supplying an oversized argument to the -rc command-line parameter, enabling arbitrary code execution. This is a high-severity flaw (CVSS 8.4) with low attack complexity, potentially leading to full compromise of confidentiality, integrity, and availability. There are currently no known public exploits, active exploitation, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.9.18-10CPE matchmatch criteria
cpe:2.3:a:hnb_project:hierarchical_notebook:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

8.6HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
10.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 14th percentile among its peer group of 3,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

hnb.sourceforge.net
Product
exploit-db.com / exploits/40025
ExploitVDB Entry
vulncheck.com / advisories/hnb-organizer-10-local-buffer-overflow-via-rc-parameter
Third Party Advisory