Critical severity9.8NVD Advisory· Published Aug 18, 2021· Updated Jun 17, 2026
CVE-2020-25928
CVE-2020-25928
Description
The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Buffer Overflow. The impact is: execute arbitrary code (remote). The component is: DNS response processing functions: dns_upcall(), getoffset(), dnc_set_answer(). The attack vector is: a specific DNS response packet. The code does not check the "response data length" field of individual DNS answers, which may cause out-of-bounds read/write operations, leading to Information leak, Denial-or-Service, or Remote Code Execution, depending on the context.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- InterNiche/NicheStack TCP/IPdescription
- Range: 4.0.1
Patches
Vulnerability mechanics
References
2- www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/nvdMitigationThird Party Advisory
- www.kb.cert.org/vuls/id/608209nvdThird Party AdvisoryUS Government Resource
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