CVE-2020-25927: Hcc-Embedded Nichestack Tcp/ip

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service (remote). The component is: DNS response processing in function: dns_upcall(). The attack vector is: a specific DNS response packet. The code does not check whether the number of queries/responses specified in the DNS packet header corresponds to the query/response data available in the DNS packet.

Affected products

Published 2021-08-18. Last modified 2026-06-17.