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CVE-2026-20686

MEDIUM CVSS 3.1: 5.3 EPSS 0.09%
Updated Mar 25, 2026
Apple
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions before 26.3
Fixed In 26.3
Type CWE-20 (Improper Input Validation)
Vendor Apple
Public PoC No

This issue was addressed with improved input validation. This issue is fixed in iOS 26.3 and iPadOS 26.3. An app may be able to access sensitive user data.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Apple Ipados
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
26.3
Apple Iphone_Os
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
26.3