#VU114314 Out-of-bounds write in Apple iOS and iPadOS - CVE-2025-43300


| Updated: 2025-08-29

Vulnerability identifier: #VU114314

Vulnerability risk: Critical

CVSSv4.0: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2025-43300

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: Yes

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 compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the ImageIO subsystem. A remote attacker can create a specially crafted image file, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 17.0 21A326, 17.0 21A327, 17.0 21A329, 17.0 21A331, 17.0.1 21A340, 17.0.2 21A350, 17.0.2 21A351, 17.0.3 21A360, 17.1 21B74, 17.1 21B80, 17.1.2 21B101, 17.2 21C62, 17.2.1 21C66, 17.3 21D50, 17.3.1 21D61, 17.4 21E217, 17.4.1 21E236, 17.4.1 21E237, 17.5 21F79, 17.5.1 21F90, 17.6 21G80, 17.6.1 21G93, 17.6.1 21G101, 17.7 21H16, 17.7.1 21H216, 17.7.2 21H216, 18.0 22A3354, 18.0.1 22A3370, 18.1 22B83, 18.1.1 22B83, 18.2 22C152, 18.3 22D60, 18.3.1 22D72, 18.3.1 22D8075, 18.3.2 22D82, 18.3.2 22D8082, 18.4 22E240, 18.4.1 22E252, 18.5 22F76, 18.6 22G86, 18.6.1 22G90

iPadOS: 18.0 22A3354, 18.0.1 22A3370, 18.1 22B83, 18.1.1 22B83, 18.2 22C152, 18.3 22D60, 18.3.1 22D72, 18.3.2 22D82, 18.4 22E240, 18.4.1 22E252, 18.5, 18.6, 18.6.1


External links
https://support.apple.com/en-us/124925


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.


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