CCrypt in corecrypto in CommonCrypto in Apple iOS before 10 and OS X before 10.12 allows attackers to discover cleartext information by leveraging a function call that specifies the same buffer for input and output.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
1.6% chance of exploitation in the next 30 days; higher than 75% of CVEs (scores of 2026-10-31)