What’s Vulnerable › Vulnerabilities

CVE-2020-25926

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-18 · updated 2026-06-17
• Weakness: CWE-331

Description

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.

Affected products

• Hcc-Embedded Nichestack Tcp/Ip: 4.0.1

References

• https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209
• https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209
• https://www.kb.cert.org/vuls/id/608209

Get alerted when CVE-2020-25926 or the next vulnerability affects your stack