The XPC Services API in LaunchServices in Apple iOS before 9.3 allows attackers to bypass intended event-handler restrictions and modify an arbitrary app's events via a crafted app.
Severity
CVSS 3.0
6.2 medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
0.3% chance of exploitation in the next 30 days; higher than 26% of CVEs (scores of 2026-10-31)