An issue was discovered in HCC Embedded NicheStack IPv4 4.1.
Priority LOW 36CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.
Why it matters now
EPSS 0.01453 73rd 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_ipv4:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Hcc-embedded |
- cpe:2.3:a:hcc-embedded:nichestack_ipv4:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Hcc-embedded
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-25767
- 2026-10-03 Alias added: GHSA-2hg5-gxv6-8v58
References
Sources
- CVE-2020-25767 · CVE Program
- CVE-2020-25767 · NVD
- FIRST EPSS
- GHSA-2hg5-gxv6-8v58 · GitHub Advisory Database · CC BY 4.0
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