CVE-2021-1763

HIGH

7.8

CVSS Score

Published: April 2, 2021 at 05:53 PM UTC

Updated: June 17, 2026 at 03:32 AM UTC

3 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploit prediction

EPSS 1%

Description

A buffer overflow 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, iOS 14.4 and iPadOS 14.4. 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 < 14.4

Affected range stops below 14.4, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 14.4

Affected range stops below 14.4, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 11.210.14 ≤ v < 10.14.610.15 ≤ v < 10.15.711.0 ≤ v < 11.210.14.6 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 10.14.6 security_update_2020-004 10.14.6 security_update_2020-005 10.14.6 security_update_2020-006 10.14.6 security_update_2020-007 10.14.6 supplemental_update 10.14.6 supplemental_update_2 10.15.7 10.15.7 supplemental_update

Affected range stops below 10.14.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 10.15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT212146

x_refsource_MISCRelease NotesVendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT212147

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-120

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