CVE-2023-32434
Apple Multiple Products Integer Overflow Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 July 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 51.52% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 23 June 2023 · due 14 July 2023
- Weakness
- CWE-190
- Affected
- apple/ipados · apple/iphone os · apple/macos · apple/watchos
- Source
- product-security@apple.com
EPSS 51.5% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://support.apple.com/en-us/HT213808, https://support.apple.com/en-us/HT213812, https://support.apple.com/en-us/HT213809, https://support.apple.com/en-us/HT213810, https://support.apple.com/en-us/HT213813, https://support.apple.com/en-us/HT213811, https://support.apple.com/en-us/HT213814; https://nvd.nist.gov/vuln/detail/CVE-2023-32434
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.