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2.4

CVE-2018-4123: iPhone Clock can expose iTunes email nearby

CVE-2018-4123 · published 8 years ago
Summary

iPhones running iOS versions earlier than 11.3 have a flaw in the Clock app’s alarm and timer functions. A person standing close to the device could discover the iTunes account email linked to the phone. Updating the iPhone to iOS 11.3 or later resolves the issue.

What to do
  • Update apple iphone_os to version 11.3 or later.
Affected software
VendorProductAffected versions
apple iphone_os < 11.3
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Original advisory text
An issue was discovered in certain Apple products. iOS before 11.3 is affected. The issue involves alarm and timer handling in the "Clock" component. It allows physically proximate attackers to dis...
An issue was discovered in certain Apple products. iOS before 11.3 is affected. The issue involves alarm and timer handling in the "Clock" component. It allows physically proximate attackers to discover the iTunes e-mail address.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
2.4 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-200Information Exposure
Timeline
Published3 Apr 2018
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-4123 · NVD
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