CVE-2021-30971

HIGH

7.8

CVSS Score

Published: August 24, 2021 at 06:51 PM UTC

Updated: June 17, 2026 at 03:51 AM UTC

3 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 1%

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 lead to unexpected application termination or arbitrary code execution.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 15.2

Affected range stops below 15.2, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.2

Affected range stops below 15.2, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 11.6v < 12.1v < 202110.15 ≤ v ≤ 10.15.711.0 ≤ v < 11.6.212.0 ≤ v < 12.110.15.7 security_update_2020-001 10.15.7 security_update_2021-001 10.15.7 security_update_2021-002 10.15.7 security_update_2021-003 10.15.7 security_update_2021-004 10.15.7 security_update_2021-005 10.15.7 security_update_2021-006 10.15.7 security_update_2021-007

Affected range stops below 11.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.6.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 2021, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_MISC

Source: [email protected]

https://support.apple.com/en-us/HT212976

x_refsource_MISC

Source: [email protected]

https://support.apple.com/en-us/HT212978

x_refsource_MISC

Source: [email protected]

https://support.apple.com/en-us/HT212979

x_refsource_MISC

Source: [email protected]

https://support.apple.com/en-us/HT212981

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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