CVE-2023-32434

HIGH

7.8

CVSS Score

Published: June 23, 2023 at 12:00 AM UTC

Updated: June 17, 2026 at 05:58 AM UTC

4 products affected across 1 vendormacOSiPhone OSiPadOS

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Severity

HIGH7.8

Exploitation

CISA KEV

Exploit prediction

EPSS 52%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score51.5%

EPSS (Exploit Prediction Scoring System) estimates a 51.5% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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

Required Action

Apply updates per vendor instructions.

Ransomware Use

Unknown

Added to KEV

Jun 23, 2023

Remediation Due

Jul 14, 2023

1204 days overdue

Notes

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

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

iPadOS · Apple

95%

v < 15.7v < 15.7.7v < 16.516.0 ≤ v < 16.5.1

Affected range stops below 15.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.7.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.5.1, so it looks safe — our inference, not a vendor statement

iPhone OS · Apple

95%

v < 15.7.716.0 ≤ v < 16.5.1

Affected range stops below 15.7.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 16.5.1, so it looks safe — our inference, not a vendor statement

macOS · Apple

95%

v < 11.7v < 12.6v < 13.411.0 ≤ v < 11.7.812.0.0 ≤ v < 12.6.713.0 ≤ v < 13.4.1

Affected range stops below 11.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 11.7.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.6, so it looks safe — our inference, not a vendor statement

Affected range stops below 12.6.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 13.4.1, so it looks safe — our inference, not a vendor statement

watchOS · Apple

95%

v < 8.8v < 8.8.1v < 9.59.0 ≤ v < 9.5.2

Affected range stops below 8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.8.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.5.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (10)

Mailing ListThird Party Advisory

Source: [email protected]

http://seclists.org/fulldisclosure/2023/Oct/20

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213808

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213809

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213810

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213811

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213812

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213813

Vendor Advisory

Source: [email protected]

https://support.apple.com/en-us/HT213814

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-190

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