CVE-2021-30819

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-19 · updated 2026-06-17
Weakness: CWE-125

Description

An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 15 and iPadOS 15. Processing a maliciously crafted USD file may disclose memory contents.

Affected products

Apple iPadOS: before 15.0 — fixed in 15.0
Apple Iphone Os: before 15.0 — fixed in 15.0
Apple macOS: before 11.6 — fixed in 11.6

How to fix

Upgrade to a fixed version: Apple iPadOS 15.0; Apple Iphone Os 15.0; Apple macOS 11.6. Check the vendor advisory for mitigations.

References

http://seclists.org/fulldisclosure/2021/Oct/61
https://support.apple.com/en-us/HT212814
https://support.apple.com/kb/HT212804
http://seclists.org/fulldisclosure/2021/Oct/61
https://support.apple.com/en-us/HT212814
https://support.apple.com/kb/HT212804

Get alerted when CVE-2021-30819 or the next vulnerability affects your stack