CVE-2020-25926
HIGHCVSS 7.5/10EPSS 1.26%
Last modified
CVE-2020-25926 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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). EPSS estimates a 1.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Hcc-Embedded | Nichestack Tcp\/Ip | 4.0.1 |
References
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/Mitigation, Third Party Advisory
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/Mitigation, Third Party Advisory
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
- https://www.kb.cert.org/vuls/id/608209Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-25926?
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.
How severe is CVE-2020-25926?
CVE-2020-25926 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.
How do I fix CVE-2020-25926?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2020-25926?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST