CVSS v3
9.8
CRITICAL
EPSS Score
1.9 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Technical details
- Published
- 2021-03-11
Frequently asked questions
What is CVE-2016-20009?
A DNS client stack-based buffer overflow in ipdnsc_decode_name() affects Wind River VxWorks 6.5 through 7. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
Is CVE-2016-20009 actively exploited?
Active exploitation of CVE-2016-20009 has not been confirmed. Its EPSS score was 1.9% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2016-20009?
CVE-2016-20009 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2016-20009 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.
No credit card required · 500 free checks/month · Free API key
Other 2016 vulnerabilities worth triaging
Ranked by exploit probability (EPSS).