CVE-2023-32434

Name: CVE-2023-32434
Creator: NVD / NIST
Published: 2023-06-23T18:15:13.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 51.52%

Last modified Jun 17, 2026

CVE-2023-32434 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. CISA has confirmed active exploitation in the wild. EPSS estimates a 51.52% chance of exploitation in the next 30 days.

Description

An integer overflow was addressed with improved input validation. This issue is fixed in watchOS 9.5.2, macOS Big Sur 11.7.8, iOS 15.7.7 and iPadOS 15.7.7, macOS Monterey 12.6.7, watchOS 8.8.1, iOS 16.5.1 and iPadOS 16.5.1, macOS Ventura 13.4.1. An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.

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

51.52%

98.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jul 14, 2023.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 15.7.7
Apple	Ipados	>= 16.0, < 16.5.1
Apple	Iphone Os	< 15.7.7
Apple	Iphone Os	>= 16.0, < 16.5.1
Apple	Macos	>= 11.0, < 11.7.8
Apple	Macos	>= 12.0.0, < 12.6.7
Apple	Macos	>= 13.0, < 13.4.1
Apple	Watchos	< 8.8.1
Apple	Watchos	>= 9.0, < 9.5.2

References

http://seclists.org/fulldisclosure/2023/Oct/20Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT213808Vendor Advisory
https://support.apple.com/en-us/HT213809Vendor Advisory
https://support.apple.com/en-us/HT213810Vendor Advisory
https://support.apple.com/en-us/HT213811Vendor Advisory
https://support.apple.com/en-us/HT213812Vendor Advisory
https://support.apple.com/en-us/HT213813Vendor Advisory
https://support.apple.com/en-us/HT213814Vendor Advisory
https://support.apple.com/kb/HT213990Vendor Advisory
http://seclists.org/fulldisclosure/2023/Oct/20Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT213808Vendor Advisory
https://support.apple.com/en-us/HT213809Vendor Advisory
https://support.apple.com/en-us/HT213810Vendor Advisory
https://support.apple.com/en-us/HT213811Vendor Advisory
https://support.apple.com/en-us/HT213812Vendor Advisory
https://support.apple.com/en-us/HT213813Vendor Advisory
https://support.apple.com/en-us/HT213814Vendor Advisory
https://support.apple.com/kb/HT213990Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32434US Government Resource

Timeline

Published: Jun 23, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-32434?

How severe is CVE-2023-32434?

CVE-2023-32434 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 51.52% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2023-32434?

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-2023-32434?

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

Scan your code now

Source: NVD / NIST