Remote code execution in Apple iOS 18 and iPadOS 18
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2025-43400 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
iPadOS Operating systems & Components / Operating system Apple iOS Operating systems & Components / Operating system |
| Vendor | Apple Inc. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU116173
Risk: High
CVSSv4.0: 5.7 [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:U/U:Amber]
CVE-ID: CVE-2025-43400
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error within the FontParser component. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.
MitigationInstall update from vendor's website.
Vulnerable software versionsiPadOS: 18.0 22A3354 - 18.7 22H20
Apple iOS: 18.0 22A3354 - 18.7 22H20
CPE2.3 External linkshttps://support.apple.com/en-us/125327
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.
