CVE-2026-20634: Processing a maliciously crafted image may result in disclosure of process memory in Apple iOS and iPadOS
CVE-2026-20634 is a vulnerability in Apple iOS and iPadOS where processing a maliciously crafted image may lead to disclosure of process memory. This issue affects multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The vulnerability was addressed by Apple through improved memory handling and fixed in iOS 18.7.5, iPadOS 18.7.5, and corresponding versions of other Apple OSes. The CVSS score is 5.5, indicating a medium severity level. Exploitation requires local access with user interaction and could result in confidentiality loss without impacting integrity or availability.
AI Analysis
Technical Summary
CVE-2026-20634 is a medium severity vulnerability in Apple operating systems where processing a specially crafted image file may cause disclosure of process memory. The flaw arises from improper memory handling during image processing. Apple fixed this issue by improving memory management in iOS 18.7.5, iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, and watchOS 26.3. The vulnerability requires local access with user interaction and does not affect system integrity or availability. No public exploits have been observed.
Potential Impact
Successful exploitation of this vulnerability may lead to disclosure of process memory, potentially exposing sensitive information. The impact is limited to confidentiality and does not affect integrity or availability. The attack vector is local with low complexity and requires user interaction.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.5, iPadOS 18.7.5, and corresponding versions of macOS, tvOS, visionOS, and watchOS. Users and administrators should apply these updates promptly to remediate the issue. There are no indications that additional mitigations are required beyond applying the official patches.
CVE-2026-20634: Processing a maliciously crafted image may result in disclosure of process memory in Apple iOS and iPadOS
Description
CVE-2026-20634 is a vulnerability in Apple iOS and iPadOS where processing a maliciously crafted image may lead to disclosure of process memory. This issue affects multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. The vulnerability was addressed by Apple through improved memory handling and fixed in iOS 18.7.5, iPadOS 18.7.5, and corresponding versions of other Apple OSes. The CVSS score is 5.5, indicating a medium severity level. Exploitation requires local access with user interaction and could result in confidentiality loss without impacting integrity or availability.
CVSS v3.1
Score 5.5medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-20634 is a medium severity vulnerability in Apple operating systems where processing a specially crafted image file may cause disclosure of process memory. The flaw arises from improper memory handling during image processing. Apple fixed this issue by improving memory management in iOS 18.7.5, iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, tvOS 26.3, visionOS 26.3, and watchOS 26.3. The vulnerability requires local access with user interaction and does not affect system integrity or availability. No public exploits have been observed.
Potential Impact
Successful exploitation of this vulnerability may lead to disclosure of process memory, potentially exposing sensitive information. The impact is limited to confidentiality and does not affect integrity or availability. The attack vector is local with low complexity and requires user interaction.
Mitigation Recommendations
Apple has released official fixes for this vulnerability in iOS 18.7.5, iPadOS 18.7.5, and corresponding versions of macOS, tvOS, visionOS, and watchOS. Users and administrators should apply these updates promptly to remediate the issue. There are no indications that additional mitigations are required beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2025-11-11T14:43:07.861Z
- State
- PUBLISHED
Threat ID: 698d0dca4b57a58fa1d95b9d
Added to database: 02/11/2026, 23:16:26 UTC
Last enriched: 05/26/2026, 20:22:08 UTC
Last updated: 09/10/2026, 19:36:52 UTC
Views: 198
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