CVE-2023-32434
Apple Multiple Products Integer Overflow Vulnerability
- High 7.8
- Exploited: added to CISA KEV 23 Jun 2023
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.
Key facts
- Published
- 23 Jun 2023
- Last changed
- 21 Oct 2025
- Assigned by
- apple
- KEV added
- 23 Jun 2023
- KEV fix due
- 14 Jul 2023
- EPSS
- 58.157% likely to be exploited in the next 30 days, higher than 99.106% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Apple | macOS |
|
| Apple | iOS and iPadOS |
|
| Apple | iOS and iPadOS |
|
| Apple | watchOS |
|
| Apple | watchOS |
|
| Apple | macOS |
|
| Apple | macOS |
|
Timeline
- 23 Jun 2023 Published
- 23 Jun 2023 CVE-2023-32434 added to CISA KEV
- 23 Jun 2023 Added to the CISA KEV catalogue