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6.5

iOS Messages can crash from malicious text

CVE-2018-4250 · published 8 years ago
Summary

iPhones running iOS versions earlier than 11.4 are vulnerable in the Messages app. A specially crafted message can make the app stop working, effectively locking the device until it is restarted. Update the iPhone to iOS 11.4 or later to prevent this issue.

What to do
  • Update apple iphone_os to version 11.4 or later.
Affected software
VendorProductAffected versions
apple iphone_os < 11.4
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Original advisory text
An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Messages" component. It allows remote attackers to cause a denial of service via a crafted me...
An issue was discovered in certain Apple products. iOS before 11.4 is affected. The issue involves the "Messages" component. It allows remote attackers to cause a denial of service via a crafted message.
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
6.5 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-20Improper Input Validation
Timeline
Published8 Jun 2018
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2018-4250 · NVD
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