CVE-2020-9887

Name: CVE-2020-9887
Creator: NVD / NIST
Published: 2020-10-22T18:15:15.253+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2020-9887 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6. Viewing a maliciously crafted JPEG file may lead to arbitrary code execution.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.97%

57.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	>= 10.13.6, < 10.15.6

References

https://support.apple.com/kb/HT211289Vendor Advisory
https://support.apple.com/kb/HT211289Vendor Advisory

Timeline

Published: Oct 22, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9887?

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.6. Viewing a maliciously crafted JPEG file may lead to arbitrary code execution.

How severe is CVE-2020-9887?

CVE-2020-9887 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9887?

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-2020-9887?

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

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Source: NVD / NIST