Safari Memory Corro. (CVE-2023-43010) in iOS/macOS <17.2 Fixed
CVE-2023-43010 Published on March 12, 2026
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.
Vulnerability Analysis
CVE-2023-43010 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Classic Buffer Overflow Vulnerability?
The program 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, leading to a buffer overflow. A buffer overflow condition exists when a program attempts to put more data in a buffer than it can hold, or when a program attempts to put data in a memory area outside of the boundaries of a buffer. The simplest type of error, and the most common cause of buffer overflows, is the "classic" case in which the program copies the buffer without restricting how much is copied. Other variants exist, but the existence of a classic overflow strongly suggests that the programmer is not considering even the most basic of security protections.
CVE-2023-43010 has been classified to as a Classic Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2023-43010
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Affected Versions
Apple iOS and iPadOS:- Version unspecified and below 17.2 is affected.
- Version unspecified and below 17.2 is affected.
- Version unspecified and below 14.2 is affected.
- Version unspecified and below 16.7.15 is affected.
- Version unspecified and below 15.8.7 is affected.
- Version 0:2.48.3-2.el7_9 and below * is unaffected.
- Version 0:2.46.3-1.el8_10 and below * is unaffected.
- Version 0:2.46.3-1.el8_2 and below * is unaffected.
- Version 0:2.46.3-1.el8_4 and below * is unaffected.
- Version 0:2.46.3-1.el8_4 and below * is unaffected.
- Version 0:2.46.3-1.el8_4 and below * is unaffected.
- Version 0:2.46.3-1.el8_6 and below * is unaffected.
- Version 0:2.46.3-1.el8_6 and below * is unaffected.
- Version 0:2.46.3-1.el8_6 and below * is unaffected.
- Version 0:2.46.3-1.el8_8 and below * is unaffected.
- Version 0:2.44.3-2.el9 and below * is unaffected.
- Version 0:2.46.1-2.el9_4 and below * is unaffected.
- Version 0:2.46.1-1.el9_0 and below * is unaffected.
- Version 0:2.46.1-1.el9_2 and below * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.