Out-of-Bounds Write in USD File Parser Fixed in iOS 18.7.5 / macOS 14.8.4
CVE-2026-20616 Published on February 11, 2026
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, macOS Tahoe 26.3, macOS Sonoma 14.8.4, visionOS 26.3. Processing a maliciously crafted USD file may lead to unexpected app termination.
Vulnerability Analysis
CVE-2026-20616 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 have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-20616 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-20616
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-20616 are published in these products:
Affected Versions
Apple macOS:- Version unspecified and below 26.3 is affected.
- Version unspecified and below 26.3 is affected.
- Version unspecified and below 14.8 is affected.
- Version unspecified and below 18.7 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.