CVE-2020-3897

Name: CVE-2020-3897
Creator: NVD / NIST
Published: 2020-04-01T18:15:16.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 4.41%

Last modified Jun 17, 2026

CVE-2020-3897 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, watchOS 6.2, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. EPSS estimates a 4.41% chance of exploitation in the next 30 days.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, watchOS 6.2, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. A remote attacker may be able to cause arbitrary code execution.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

4.41%

90.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-843

Affected Software

Vendor	Product	Versions
Apple	Icloud	< 7.18
Apple	Icloud	>= 10.0.0, < 10.9.3
Apple	Itunes	< 12.10.5
Apple	Safari	< 13.1
Apple	Ipad Os	< 13.4
Apple	Iphone Os	< 13.4
Apple	Tvos	< 13.4
Apple	Watchos	< 6.2

References

https://support.apple.com/HT211101Release Notes, Vendor Advisory
https://support.apple.com/HT211102Release Notes, Vendor Advisory
https://support.apple.com/HT211103Release Notes, Vendor Advisory
https://support.apple.com/HT211104Release Notes, Vendor Advisory
https://support.apple.com/HT211105Release Notes, Vendor Advisory
https://support.apple.com/HT211106Release Notes, Vendor Advisory
https://support.apple.com/HT211107Release Notes, Vendor Advisory
https://support.apple.com/HT211101Release Notes, Vendor Advisory
https://support.apple.com/HT211102Release Notes, Vendor Advisory
https://support.apple.com/HT211103Release Notes, Vendor Advisory
https://support.apple.com/HT211104Release Notes, Vendor Advisory
https://support.apple.com/HT211105Release Notes, Vendor Advisory
https://support.apple.com/HT211106Release Notes, Vendor Advisory
https://support.apple.com/HT211107Release Notes, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-3897?

How severe is CVE-2020-3897?

CVE-2020-3897 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.41% probability of exploitation in the next 30 days.

How do I fix CVE-2020-3897?

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-2020-3897?

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

Scan your code now

Source: NVD / NIST