CVE-2020-5529

Name: CVE-2020-5529
Creator: NVD / NIST
Published: 2020-02-11T12:15:21.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 4.60%

Last modified Jun 17, 2026

CVE-2020-5529 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. HtmlUnit prior to 2.37.0 contains code execution vulnerabilities. HtmlUnit initializes Rhino engine improperly, hence a malicious JavScript code can execute arbitrary Java code on the application. EPSS estimates a 4.60% chance of exploitation in the next 30 days.

Description

HtmlUnit prior to 2.37.0 contains code execution vulnerabilities. HtmlUnit initializes Rhino engine improperly, hence a malicious JavScript code can execute arbitrary Java code on the application. Moreover, when embedded in Android application, Android-specific initialization of Rhino engine is done in an improper way, hence a malicious JavaScript code can execute arbitrary Java code on the application.

Metrics

CVSS 3.1

8.1/10

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

EPSS Probability

4.60%

90.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Htmlunit	Htmlunit	< 2.37.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	16.04
Apache	Camel	All versions

References

https://github.com/HtmlUnit/htmlunit/releases/tag/2.37.0Release Notes, Third Party Advisory
https://jvn.jp/en/jp/JVN34535327/Third Party Advisory
https://lists.apache.org/thread.html/ra2cd7f8e61dc6b8a2d9065094cd1f46aa63ad10f237ee363e26e8563%40%3Ccommits.camel.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/08/msg00023.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/4584-1/Third Party Advisory
https://github.com/HtmlUnit/htmlunit/releases/tag/2.37.0Release Notes, Third Party Advisory
https://jvn.jp/en/jp/JVN34535327/Third Party Advisory
https://lists.apache.org/thread.html/ra2cd7f8e61dc6b8a2d9065094cd1f46aa63ad10f237ee363e26e8563%40%3Ccommits.camel.apache.org%3E
https://lists.debian.org/debian-lts-announce/2020/08/msg00023.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/4584-1/Third Party Advisory

Timeline

Published: Feb 11, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5529?

How severe is CVE-2020-5529?

CVE-2020-5529 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 4.60% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5529?

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-2020-5529?

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

Scan your code now

Source: NVD / NIST