Vulnerability identifier: #VU81041

Vulnerability risk: High

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2023-41991

CWE-ID: CWE-347

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apple iOS
Operating systems & Components / Operating system
iPadOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote attacker application to bypass implemented security restrictions.

The vulnerability exists due to improper verification of cryptographic signature within the Security component. A remote attacker can create a specially crafted application that can bypass signature validation process, trick the victim into installing it and compromise the affected system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 16.0 20A362 - 16.6.1

iPadOS: 16.0 20A362 - 16.6.1

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External links
http://support.apple.com/en-us/HT213927

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.