CVE-2020-9816

Name: CVE-2020-9816
Creator: NVD / NIST
Published: 2020-06-09T17:15:13.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.38%

Last modified Jun 17, 2026

CVE-2020-9816 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. EPSS estimates a 1.38% chance of exploitation in the next 30 days.

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. Opening a maliciously crafted PDF file may lead to an unexpected application termination or 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

1.38%

68.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 13.5
Apple	Iphone Os	< 13.5
Apple	Mac Os X	< 10.15.5
Apple	Tvos	< 13.4.5
Apple	Watchos	< 6.2.5

References

https://support.apple.com/HT211168Release Notes, Vendor Advisory
https://support.apple.com/HT211170Release Notes, Vendor Advisory
https://support.apple.com/HT211171Release Notes, Vendor Advisory
https://support.apple.com/HT211175Release Notes, Vendor Advisory
https://support.apple.com/HT211168Release Notes, Vendor Advisory
https://support.apple.com/HT211170Release Notes, Vendor Advisory
https://support.apple.com/HT211171Release Notes, Vendor Advisory
https://support.apple.com/HT211175Release Notes, Vendor Advisory

Timeline

Published: Jun 9, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9816?

How severe is CVE-2020-9816?

CVE-2020-9816 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.38% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9816?

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-2020-9816?

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

Scan your code now

Source: NVD / NIST