Is CVE-2023-42873 in the CISA KEV catalog?

No. CVE-2023-42873 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-42873?

CVE-2023-42873 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-42873?

CVE-2023-42873 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-42873?

Upgrade ipad os to 16.7.2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-42873

HIGH

7.8

CVSS v3

NVD

Description

The issue was addressed with improved bounds checks. This issue is fixed in macOS Sonoma 14.1, tvOS 17.1, macOS Monterey 12.7.1, iOS 16.7.2 and iPadOS 16.7.2, iOS 17.1 and iPadOS 17.1, macOS Ventura 13.6.1. An app may be able to execute arbitrary code with kernel privileges.

CWE-787Out-of-bounds Write

How to fix

Remediation Available

ipad osNVD

Affected:>= 16.0, < 16.7.2Fixed in:16.7.2CVE-2023-42873derived from NVD

iphone osNVD

Affected:>= 16.0, < 16.7.2Fixed in:16.7.2CVE-2023-42873derived from NVD

macosNVD

Affected:>= 13.0, < 13.6.1Fixed in:13.6.1CVE-2023-42873derived from NVD

tvosNVD

Affected:< 17.1Fixed in:17.1CVE-2023-42873derived from NVD

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

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Vendor Advisory6

Other references4

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-22457	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2025-0282	Critical	9.0	100%	KEV + Ransom	-
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2021-20038	Critical	9.8	100%	KEV + Ransom	-
CVE-2023-4863	High	8.8	100%	KEV	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix

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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 2025-11-04.