An issue was discovered in HCC embedded InterNiche 4.0.1.
Priority MEDIUM 48CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
An issue was discovered in HCC embedded InterNiche 4.0.1. A potential heap buffer overflow exists in the code that parses the HTTP POST request, due to lack of size validation. This vulnerability requires the attacker to send a crafted HTTP POST request with a URI longer than 50 bytes. This leads to a heap overflow in wbs_post() via an strcpy() call.
Why it matters now
EPSS 0.03155 88th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hcc-embedded:interniche:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Hcc-embedded |
- cpe:2.3:a:hcc-embedded:interniche:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Hcc-embedded
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31226
- 2026-10-03 Alias added: GHSA-3qrq-p37g-j4wm
References
Sources
- CVE-2021-31226 · CVE Program
- CVE-2021-31226 · NVD
- FIRST EPSS
- GHSA-3qrq-p37g-j4wm · GitHub Advisory Database · CC BY 4.0
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