DNS Implementation Weakness in Ethernut for Nut/OS 5.1
CVE-2020-25109

9.8CRITICAL

Key Information:

Vendor

Ethernut

Status
Nut\/os
Vendor
CVE Published:
11 December 2020

What is CVE-2020-25109?

A flaw in the DNS implementation in the Ethernut platform for Nut/OS 5.1 allows for DNS queries and responses to be mishandled due to a lack of proper validation against the data in the DNS header. This oversight can result in Denial-of-Service conditions and may potentially allow attackers to execute remote code, posing significant risks to system integrity and availability.

References

https://www.kb.cert.org/vuls/id/815128
x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
x_refsource_MISC

EPSS Score

53% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.