CVE-2020-3884

Name: CVE-2020-3884
Creator: NVD / NIST
Published: 2020-04-01T18:15:15.77+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.10%

Last modified Jun 17, 2026

CVE-2020-3884 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An injection issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. EPSS estimates a 1.10% chance of exploitation in the next 30 days.

Description

An injection issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A remote attacker may be able to cause arbitrary javascript code execution.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

1.10%

61.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	< 10.15.4

References

https://support.apple.com/HT211100Release Notes, Vendor Advisory
https://support.apple.com/HT211100Release Notes, Vendor Advisory

Timeline

Published: Apr 1, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-3884?

An injection issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.4. A remote attacker may be able to cause arbitrary javascript code execution.

How severe is CVE-2020-3884?

CVE-2020-3884 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.10% probability of exploitation in the next 30 days.

How do I fix CVE-2020-3884?

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-2020-3884?

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

Scan your code now

Source: NVD / NIST