What is CVE-2018-3767?

CVE-2018-3767 is a critical-severity vulnerability in Https://github.com/memcachier Memjs, classified under Uncontrolled Resource Consumption. CVSS score: 9.1/10. Published 2018-07-05.

How severe is CVE-2018-3767?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Resource exhaustion in Https://github.com/memcachier Memjs

CVE-2018-3767

`memjs` versions <= 1.1.0 allocates and stores buffers on typed input, resulting in DoS and uninitialized memory usage.

Vulnerability class: DoS (Denial of Service)

Published 2018-07-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.015 (72.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Https://github.com/memcachier Memjs — versions Not fixed
Memcachier Memjs

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

hackerone.com/reports/319809 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-3767?: CVE-2018-3767 is a critical-severity vulnerability in Https://github.com/memcachier Memjs, classified under Uncontrolled Resource Consumption. CVSS score: 9.1/10. Published 2018-07-05.
How severe is CVE-2018-3767?: Critical severity. CVSS v3 base score is 9.1 out of 10.