Zero-day vulnerability in Apple iOS

Out-of-bounds write

Not patched

According to security researchers this vulnerability is being actively exploited since January 2018.

Vulnerability details

Advisory: SB2020042245 - Remote code execution in Apple iOS

Vulnerable component: Apple iOS


CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:U/RC:C

CWE-ID: CWE-787 - Out-of-bounds write


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing email in the iOS MobileMail. A remote attacker can send a specially crafted email message, trigger an out-of-bounds write and execute arbitrary code on the target system. No user interaction is required to execute arbitrary code.

Note, this vulnerability is being actively exploited in the wild.

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