What’s Vulnerable › Vulnerabilities

CVE-2021-30929

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-24 · updated 2026-06-17
• Weakness: CWE-787

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, iOS 15.2 and iPadOS 15.2, macOS Big Sur 11.6.2, Security Update 2021-008 Catalina. Processing a maliciously crafted USD file may disclose memory contents.

Affected products

• Apple iPadOS: before 15.2 — fixed in 15.2
• Apple Iphone Os: before 15.2 — fixed in 15.2
• macOS: 10.15.7-security_update_2020-001, 10.15.7-security_update_2020-005, 10.15.7-security_update_2020-007, 10.15.7-security_update_2021-001, 10.15.7-security_update_2021-002, 10.15.7-security_update_2021-003
• Apple macOS: from 11.0 before 11.6.2; from 12.0 before 12.1 — fixed in 11.6.2, 12.1

How to fix

Upgrade to a fixed version: Apple iPadOS 15.2; Apple Iphone Os 15.2; Apple macOS 11.6.2, 12.1. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT212976
• https://support.apple.com/en-us/HT212978
• https://support.apple.com/en-us/HT212979
• https://support.apple.com/en-us/HT212981
• https://support.apple.com/en-us/HT212976
• https://support.apple.com/en-us/HT212978
• https://support.apple.com/en-us/HT212979
• https://support.apple.com/en-us/HT212981

Get alerted when CVE-2021-30929 or the next vulnerability affects your stack