Main Vulnerability Database Vulnerabilities #VU114314

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

Published: August 20, 2025 / Updated: February 6, 2026

Vulnerability identifier: #VU114314

CSH Severity: Critical

CVSS v4: 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]

CVE-ID: CVE-2025-43300

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

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.

Affected software

Apple iOS
iPadOS
macOS

How to mitigate CVE-2025-43300

Install updates from vendor's website.

Apple iOS - addressed in versions 18.6.2 22G100, 15.8.5 19H394, 16.7.12 20H364
iPadOS - addressed in versions 18.6.2 22G100, 15.8.5 19H394, 16.7.12 20H364, 17.7.10
macOS - addressed in versions 13.7.8 22H730, 14.7.8 23H730, 15.6.1 24G90

Links to Public Exploits and PoC-codes

External References

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