macOS File Processing Memory Corruption (Fixed 14.8.3/15.7.3)
CVE-2025-43539 Published on December 12, 2025
The issue was addressed with improved bounds checks. This issue is fixed in watchOS 26.2, macOS Sonoma 14.8.3, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, macOS Sequoia 15.7.3, visionOS 26.2, tvOS 26.2. Processing a file may lead to memory corruption.
Vulnerability Analysis
CVE-2025-43539 can be exploited 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 Buffer Overflow Vulnerability?
The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.
CVE-2025-43539 has been classified to as a Buffer Overflow vulnerability or weakness.
Products Associated with CVE-2025-43539
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Affected Versions
Apple iOS and iPadOS:- Version unspecified and below 18.7 is affected.
- Version unspecified and below 26.2 is affected.
- Version unspecified and below 14.8 is affected.
- Version unspecified and below 26.2 is affected.
- Version unspecified and below 26.2 is affected.
- Version unspecified and below 15.7 is affected.
- Version unspecified and below 26.2 is affected.
- Version unspecified and below 26.2 is affected.
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.