CVE-2020-25108

moderate-risk
Published 2020-12-11

An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked (it can be set to an arbitrary value from a packet). This may lead to successful Denial-of-Service, and possibly Remote Code Execution.

Do I need to act?

!
11.6% chance of exploitation in next 30 days
EPSS score — higher than 88% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Ethernut

References (4)

Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory https://www.kb.cert.org/vuls/id/815128
Third Party Advisory https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory https://www.kb.cert.org/vuls/id/815128
48
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 11/34 · Low
Exposure 5/34 · Minimal