CVE-2023-32434

Q: How do I fix CVE-2023-32434?

Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Q: Is CVE-2023-32434 being actively exploited?

Yes. CVE-2023-32434 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2023-07-14. Treat it as a priority whatever its CVSS score says.

Q: How severe is CVE-2023-32434?

CVE-2023-32434 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2023-32434 affect?

Published advisories record a fix for ipados (NVD), iphone os (NVD), macos (NVD), watchos (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHCISA KEVEPSS 99th pctl

7.8

CVSS v3

NVD

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.

CWE-190Integer Overflow

How to fix

Remediation Available

ipadosNVD

Affected:>= 16.0, < 16.5.1Fixed in:16.5.1CVE-2023-32434derived from NVD

iphone osNVD

Affected:>= 16.0, < 16.5.1Fixed in:16.5.1CVE-2023-32434derived from NVD

macosNVD

Affected:>= 13.0, < 13.4.1Fixed in:13.4.1CVE-2023-32434derived from NVD

watchosNVD

Affected:>= 9.0, < 9.5.2Fixed in:9.5.2CVE-2023-32434derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

51.52%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apple Multiple Products Integer Overflow Vulnerability

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

Apply updates per vendor instructions.

Remediation due: 2023-07-14

References

Vendor Advisory8

Third-Party Advisory1

seclists.org

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	92%	-	-
CVE-2017-3599	High	7.5	84%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

Common questions

How do I fix CVE-2023-32434?

Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2023-32434 being actively exploited?

Yes. CVE-2023-32434 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2023-07-14. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2023-32434?

CVE-2023-32434 has a CVSS v3 base score of 7.8, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2023-32434 affect?

Published advisories record a fix for ipados (NVD), iphone os (NVD), macos (NVD), watchos (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-23.