What’s Vulnerable › Vulnerabilities

CVE-2020-29608

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-02 · updated 2026-06-17
• Weakness: CWE-125

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.3, macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, watchOS 7.2. A remote attacker may be able to leak memory.

Affected products

• Apple iPadOS: before 14.3 — fixed in 14.3
• Apple Iphone Os: before 14.3 — fixed in 14.3
• macOS: from 10.14 before 10.14.6; from 10.15 before 10.15.7; 10.14.6, 10.14.6-security_update_2019-001, 10.14.6-security_update_2019-002, 10.14.6-security_update_2020-001, 10.14.6-security_update_2020-002, 10.14.6-security_update_2020-003 (+9) — fixed in 10.14.6, 10.15.7
• Apple macOS: from 11.0 before 11.2 — fixed in 11.2
• Apple tvOS: before 14.3 — fixed in 14.3
• Apple watchOS: before 7.2 — fixed in 7.2

How to fix

Upgrade to a fixed version: Apple iPadOS 14.3; Apple Iphone Os 14.3; macOS 10.14.6, 10.15.7; Apple macOS 11.2; Apple tvOS 14.3; Apple watchOS 7.2. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/HT212003
• https://support.apple.com/en-us/HT212005
• https://support.apple.com/en-us/HT212009
• https://support.apple.com/en-us/HT212011
• https://support.apple.com/en-us/HT212147
• https://support.apple.com/en-us/HT212003
• https://support.apple.com/en-us/HT212005
• https://support.apple.com/en-us/HT212009
• https://support.apple.com/en-us/HT212011
• https://support.apple.com/en-us/HT212147

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