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MEDIUM · 5.5

CVE-2026-20638

A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3. A user with Live Caller ID app extensions turned off could have identifying information leaked to the...

Vulnerability Description

A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3. A user with Live Caller ID app extensions turned off could have identifying information leaked to the extensions.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
AppleIpados< 26.3
AppleIphone Os< 26.3

Related Weaknesses (CWE)

CWE-284

References

FAQ

What is CVE-2026-20638?

CVE-2026-20638 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3. A user with Live Caller ID app extensions turned off could have identifying information leaked to the...

How severe is CVE-2026-20638?

CVE-2026-20638 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-20638?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os.