HNB Organizer 1.9.18-10 Local Buffer Overflow via -rc Parameter
Published Mar 28, 2026
8.6
HIGHCVSS 4.0
EPSS 0.21%
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.
Affected products
-
- Version 1.9.18-10StatusaffectedConstraints-
- Version
- ≤ 1.9.18-10
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
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
1 other source (NVD) ▾
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Mar 30, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.21% (0.00206) | 9.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.21% (0.00206) | 10.64th | v5 (v2026.06.15) |
| Mar 28, 2026 | 0.01% (0.00013) | 2.15th | v4 (v2025.03.14) |
References (3)
- http://hnb.sourceforge.net/ product
- https://www.exploit-db.com/exploits/40025 exploitVDB Entry
- https://www.vulncheck.com/advisories/hnb-organizer-10-local-buffer-overflow-via-rc-parameter third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://hnb.sourceforge.net/ | product | |
| https://www.exploit-db.com/exploits/40025 | exploitVDB Entry | |
| https://www.vulncheck.com/advisories/hnb-organizer-10-local-buffer-overflow-via-rc-parameter | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.