CVE-2019-8668

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-10-27 · updated 2026-06-17
Weakness: CWE-20

Description

A denial of service issue was addressed with improved validation. This issue is fixed in iOS 12.4, tvOS 12.4, watchOS 5.3. Processing a maliciously crafted image may lead to a denial of service.

Affected products

Apple Iphone Os: before 12.4 — fixed in 12.4
Apple tvOS: before 12.4 — fixed in 12.4
Apple watchOS: before 5.3 — fixed in 5.3

How to fix

Upgrade to a fixed version: Apple Iphone Os 12.4; Apple tvOS 12.4; Apple watchOS 5.3. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/HT210346
https://support.apple.com/en-us/HT210351
https://support.apple.com/en-us/HT210353
https://support.apple.com/en-us/HT210346
https://support.apple.com/en-us/HT210351
https://support.apple.com/en-us/HT210353

Get alerted when CVE-2019-8668 or the next vulnerability affects your stack