An issue was discovered in HCC embedded InterNiche 4.0.1.
Priority LOW 35CWE-330Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An issue was discovered in HCC embedded InterNiche 4.0.1. This vulnerability allows the attacker to predict a DNS query's source port in order to send forged DNS response packets that will be accepted as valid answers to the DNS client's requests (without sniffing the specific request). Data is predictable because it is based on the time of day, and has too few bits.
Why it matters now
EPSS 0.0127 69th 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:nichestack:*:*:*:*:*:*:*:* | before 4.3 | Vulnerable | Hcc-embedded |
- cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:* Versions before 4.3 Vulnerable ·Hcc-embedded
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31228
- 2026-10-03 Alias added: GHSA-j7p3-x6j6-x86p
References
More Hcc-embedded Nichestack vulnerabilities
- TI-2020-18156 An issue was discovered in HCC Nichestack 3.0. CVSS 3.1CRITICAL 9.1
- TI-2021-09021 The web server in InterNiche NicheStack through 4.0.1 allows remote attackers to cause a… CVSS 3.1HIGH 7.5
- TI-2021-14884 An issue was discovered in HCC Embedded InterNiche NicheStack through 4.3. CVSS 3.1HIGH 7.5
- TI-2021-11533 An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. CVSS 3.1HIGH 7.5
- TI-2020-18155 An issue was discovered in HCC Nichestack 3.0. CVSS 3.1HIGH 7.5
- TI-2020-18154 An issue was discovered in HCC Nichestack 3.0. CVSS 3.1HIGH 7.5
Sources
- CVE-2021-31228 · CVE Program
- CVE-2021-31228 · NVD
- FIRST EPSS
- GHSA-j7p3-x6j6-x86p · GitHub Advisory Database · CC BY 4.0
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