CVE-2023-32434

KEVApple Multiple Products Integer Overflow Vulnerability

Description

Apple iOS. iPadOS, macOS, and watchOS contain an integer overflow vulnerability that could allow an application to execute code with kernel privileges.

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.

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

PublishedJun 23, 2023

Last modifiedJun 17, 2026

Added to KEVJun 23, 2023

Remediation dueJul 14, 2023

References

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

0 recent articles mention this CVE

Risk assessment · High

Actively exploited. Patch immediately.

Exploitation: Confirmed in the wild (CISA KEV)
Federal remediation deadline: Overdue by 1201 days
CVSS: 7.8 HIGH
EPSS (30-day exploit probability): 51.5% · top 1% of all CVEs
Weakness: CWE-190

Recommended actions

1.Apply updates per vendor instructions.
2.Treat as emergency change: patch or isolate internet-facing instances first.
3.Hunt for compromise: review logs for the disclosure window, not just from the patch date.

Assessment is derived automatically from the live signals above; verify against your own asset inventory.