CVE-2023-43010

Modified Modified - Updated After Analysis

Memory Corruption in Apple Safari and iOS via Malicious Web Content

Publication date: 2026-03-12

Last updated on: 2026-06-30

Assigner: Apple Inc.

Description

The issue was addressed with improved memory handling. This issue is fixed in iOS 17.2 and iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, iOS 16.7.15 and iPadOS 16.7.15, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-03-12

Last Modified

2026-06-30

Generated

2026-07-06

AI Q&A

2026-03-12

EPSS Evaluated

2026-07-05

NVD

CVE-2023-43010

EUVD

EUVD-2023-47431

Affected Vendors & Products

Vendor	Product	Version / Range
apple	safari	to 17.2 (exc)
apple	iphone_os	From 17.0 (inc) to 17.2 (exc)
apple	ipados	From 17.0 (inc) to 17.2 (exc)
apple	macos	to 14.2 (exc)
apple	ipados	to 15.8.7 (exc)
apple	iphone_os	to 15.8.7 (exc)
apple	ipados	From 16.0 (inc) to 16.7.15 (exc)
apple	iphone_os	From 16.0 (inc) to 16.7.15 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

CVE-2023-43010 is a vulnerability in WebKit, the web browser engine used by Apple devices. It occurs when processing maliciously crafted web content, which may lead to memory corruption.

The issue was addressed by Apple through improved memory handling in various operating system versions including iOS 17.2, iPadOS 17.2, macOS Sonoma 14.2, Safari 17.2, and earlier versions backported to support older devices.

Impact Analysis

This vulnerability can lead to memory corruption when a device processes maliciously crafted web content. Memory corruption can cause unexpected behavior such as application crashes, data corruption, or potentially allow an attacker to execute arbitrary code.

Exploitation of this vulnerability could compromise the security and stability of affected Apple devices, including iPhones, iPads, and Macs running vulnerable versions of their operating systems or Safari.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, you should update your Apple devices to the fixed versions of the operating systems and software.

Upgrade to iOS 17.2, iPadOS 17.2, or macOS Sonoma 14.2.
Update Safari to version 17.2.
If you cannot upgrade to the latest OS versions, apply the backported security updates such as iOS 16.7.15, iPadOS 16.7.15, iOS 15.8.7, and iPadOS 15.8.7.

These updates improve memory handling in WebKit to prevent exploitation via processing maliciously crafted web content.

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