CVE-2023-32366

Name: CVE-2023-32366
Creator: NVD / NIST
Published: 2024-01-10T22:15:47.897+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2023-32366 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.7.5, macOS Ventura 13.3, iOS 16.4 and iPadOS 16.4, iOS 15.7.4 and iPadOS 15.7.4, macOS Monterey 12.6.4. Processing a font file may lead to arbitrary code execution.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 15.7.4
Apple	Ipados	>= 16.0, < 16.4
Apple	Iphone Os	< 15.7.4
Apple	Iphone Os	>= 16.0, < 16.4
Apple	Macos	< 11.7.5
Apple	Macos	>= 12.0.0, < 12.6.4
Apple	Macos	>= 13.0, < 13.3

References

https://support.apple.com/en-us/HT213670Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213673Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213675Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213676Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213677Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213670Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213673Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213675Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213676Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213677Release Notes, Vendor Advisory

Timeline

Published: Jan 10, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-32366?

How severe is CVE-2023-32366?

CVE-2023-32366 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2023-32366?

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-2023-32366?

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

Scan your code now

Source: NVD / NIST