CVSS v3
7.5
HIGH
EPSS Score
1.8 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Fastify node module before 0.38.0 is vulnerable to a denial-of-service attack by sending a request with "Content-Type: application/json" and a very large payload.
Technical details
- Published
- 2018-06-07
Frequently asked questions
What is CVE-2018-3711?
Fastify node module before 0.38.0 is vulnerable to a denial-of-service attack by sending a request with "Content-Type: application/json" and a very large payload.
Is CVE-2018-3711 actively exploited?
Active exploitation of CVE-2018-3711 has not been confirmed. Its EPSS score was 1.8% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-3711?
CVE-2018-3711 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-3711 affecting your environment?
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