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HIGH

CVE-2018-3711

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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