Apple OS Image Parser Memory Disclosure (before 18.7.5/26.3)
CVE-2026-20634 Published on February 11, 2026
The issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, watchOS 26.3. Processing a maliciously crafted image may result in disclosure of process memory.
Vulnerability Analysis
CVE-2026-20634 is exploitable with local system 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 a high impact on confidentiality, with no impact on integrity and availability.
Products Associated with CVE-2026-20634
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Affected Versions
Apple iOS and iPadOS:- Before 18.7.5 is affected.
- Before 26.3 is affected.
- Before 14.8.4 is affected.
- Before 15.7.4 is affected.
- Before 26.3 is affected.
- Before 26.3 is affected.
- Before 26.3 is affected.
- Before 26.3 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.