CVE-2019-17640

Name: CVE-2019-17640
Creator: NVD / NIST
Published: 2020-10-15T21:15:11.427+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.98%

Last modified Jun 17, 2026

CVE-2019-17640 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In Eclipse Vert.x 3.4.x up to 3.9.4, 4.0.0.milestone1, 4.0.0.milestone2, 4.0.0.milestone3, 4.0.0.milestone4, 4.0.0.milestone5, 4.0.0.Beta1, 4.0.0.Beta2, and 4.0.0.Beta3, StaticHandler doesn't correctly processes back slashes on Windows Operating systems, allowing, escape the webroot folder to the current working directory.. EPSS estimates a 1.98% chance of exploitation in the next 30 days.

Description

In Eclipse Vert.x 3.4.x up to 3.9.4, 4.0.0.milestone1, 4.0.0.milestone2, 4.0.0.milestone3, 4.0.0.milestone4, 4.0.0.milestone5, 4.0.0.Beta1, 4.0.0.Beta2, and 4.0.0.Beta3, StaticHandler doesn't correctly processes back slashes on Windows Operating systems, allowing, escape the webroot folder to the current working directory.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.98%

78.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Eclipse	Vert.X	>= 3.4.0, <= 3.9.4	—
Eclipse	Vert.X	4.0.0	Beta1

References

Timeline

Published: Oct 15, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-17640?

How severe is CVE-2019-17640?

CVE-2019-17640 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.98% probability of exploitation in the next 30 days.

How do I fix CVE-2019-17640?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-17640?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST