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4.3

iOS before 8.4.1 lets malicious app avoid background limits

CVE-2015-5787 · published 10 years ago
Summary

Versions of Apple iOS older than 8.4.1 allow a specially crafted application to keep running in the background when it should be stopped. This could let a malicious app consume battery, data, or perform unwanted actions without the user’s knowledge. Update all iOS devices to version 8.4.1 or later to close the gap.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
apple iphone_os <= 8.4
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
Original advisory text
The kernel in Apple iOS before 8.4.1 does not properly restrict debugging features, which allows attackers to bypass background-execution limitations via a crafted app.
The kernel in Apple iOS before 8.4.1 does not properly restrict debugging features, which allows attackers to bypass background-execution limitations via a crafted app.
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
4.3 Medium
Exploitation
1% chance of attack within 30 days
Type
CWE-264Permissions, Privileges, and Access Controls
Timeline
Published22 Nov 2015
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2015-5787 · NVD
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