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XRAY-194057 - NicheStack DNS client TXID weak random

CVE-2020-25926 | CVSS 7.5

JFrog Severity:medium

Discovered ByDenys Vozniukof the JFrog Security Research Team

Published 4 Aug, 2021 | Last updated 4 Aug, 2021

NicheStack DNS client does not set sufficiently random transaction IDs

InterNiche TCP/IP stack

InterNiche (, 4.3), fixed in 4.3

The DNS client in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Insufficient entropy in the DNS transaction id. The impact is: DNS cache poisoning (remote). The component is: dns_query_type(). The attack vector is: a specific DNS response packet.

No PoC is supplied for this issue

No vulnerability mitigations are supplied for this issue

(JFrog) INFRA:HALT New Vulnerabilities Impacting OT and Critical Infrastructure


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