Buffer overflow in Contiki-Os
CVE-2020-25111
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.209 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.201 · newest: 0.209 · change: +0.008
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.kb.cert.org/vuls/id/815128 (US Government Resource, Third Party Advisory)
- us-cert.cisa.gov/ics/advisories/icsa-20-343-01 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25111?
- CVE-2020-25111 is a critical-severity vulnerability in Contiki-Os, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-12-11.
- How severe is CVE-2020-25111?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-25111 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.