CVE-2021-1763

moderate-risk

Published 2021-04-02

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.

Do I need to act?

0.40% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (18)

Ipados

Iphone Os

Mac Os X

Macos

Affected Vendors

Apple

References (4)

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

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

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

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

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 2/34 · Minimal

Exposure 19/34 · Moderate