Vulnerability identifier: #VU53507

Vulnerability risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30729

CWE-ID: CWE-19

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 to perform a DoS attack.

The vulnerability exists due to a login issue in the CommCenter component. A device may accept invalid activation results, which in turn can lead to denial of service.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.5 18E199 - 14.5.1 18E212, 14.4 18D52 - 14.4.2 18D70, 14.2 18B92 - 14.2.1 18B121, 14.0 18A373 - 14.0.1 18A393

iPadOS: 14.0 18A373 - 14.5.1 18E212

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External links
http://support.apple.com/en-us/HT212528

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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?

No. We are not aware of malware exploiting this vulnerability.