What is CVE-2020-6937?

CVE-2020-6937 is a high-severity vulnerability in Mulesoft Mule Runtime. CVSS score: 7.5/10. Published 2020-05-29.

How severe is CVE-2020-6937?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mulesoft Mule Runtime

CVE-2020-6937

A Denial of Service vulnerability in MuleSoft Mule CE/EE 3.8.x, 3.9.x, and 4.x released before April 7, 2020, could allow remote attackers to submit data which can lead to resource exhaustion.

Published 2020-05-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (68.2th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Mulesoft Mule Runtime
Mulesoft Mule Ce/ee — versions 3.8.x, 3.9.x, 4.x

References

help.salesforce.com/articleView (Vendor Advisory)

Frequently asked questions

What is CVE-2020-6937?: CVE-2020-6937 is a high-severity vulnerability in Mulesoft Mule Runtime. CVSS score: 7.5/10. Published 2020-05-29.
How severe is CVE-2020-6937?: High severity. CVSS v3 base score is 7.5 out of 10.