CVE-2021-30691

Name: CVE-2021-30691
Creator: NVD / NIST
Published: 2021-09-08T15:15:14.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.92%

Last modified Jun 17, 2026

CVE-2021-30691 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6. Processing a maliciously crafted USD file may disclose memory contents.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS Probability

0.92%

55.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 14.6
Apple	Iphone Os	< 14.6
Apple	Mac Os X	>= 10.14, <= 10.14.5
Apple	Mac Os X	>= 10.15, <= 10.15.6
Apple	Mac Os X	10.14.6
Apple	Mac Os X	10.15.7
Apple	Macos	>= 11.0, < 11.4

References

https://support.apple.com/en-us/HT212528Vendor Advisory
https://support.apple.com/en-us/HT212529Vendor Advisory
https://support.apple.com/en-us/HT212530Vendor Advisory
https://support.apple.com/en-us/HT212531Vendor Advisory
https://support.apple.com/en-us/HT212528Vendor Advisory
https://support.apple.com/en-us/HT212529Vendor Advisory
https://support.apple.com/en-us/HT212530Vendor Advisory
https://support.apple.com/en-us/HT212531Vendor Advisory

Timeline

Published: Sep 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30691?

How severe is CVE-2021-30691?

CVE-2021-30691 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30691?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30691?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST