CVE-2020-25111

high-risk
Published 2020-12-11

An issue was discovered in the IPv6 stack in Contiki through 3.0. There is an insufficient check for the IPv6 header length. This leads to Denial-of-Service and potential Remote Code Execution via a crafted ICMPv6 echo packet.

Do I need to act?

!
16.5% chance of exploitation in next 30 days
EPSS score — higher than 84% 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

Contiki-Os

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
50
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 13/34 · Low
Exposure 5/34 · Minimal