CVE-2025-43234
Published: 30 July 2025
Summary
CVE-2025-43234 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Apple Ipados. Its CVSS base score is 9.8 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Client Execution (T1203); ranked at the 49.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly addresses the root cause of memory corruption by enforcing validation of maliciously crafted texture inputs.
Ensures timely remediation of the specific input validation flaw through patching to the fixed OS versions.
Implements safeguards like address space layout randomization to protect against memory corruption exploits from invalid inputs.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Memory corruption RCE via malicious remote texture input on client OS/app frameworks directly enables client-side exploitation.
NVD Description
Multiple memory corruption issues were addressed with improved input validation. This issue is fixed in iOS 18.6 and iPadOS 18.6, macOS Sequoia 15.6, tvOS 18.6, visionOS 2.6, watchOS 11.6. Processing a maliciously crafted texture may lead to unexpected app termination.
Deeper analysisAI
CVE-2025-43234 involves multiple memory corruption issues stemming from improper input validation (CWE-20). These vulnerabilities affect Apple's operating systems, including iOS prior to 18.6, iPadOS prior to 18.6, macOS Sequoia prior to 15.6, tvOS prior to 18.6, visionOS prior to 2.6, and watchOS prior to 11.6. The issues manifest when processing a maliciously crafted texture, potentially leading to unexpected app termination.
The vulnerability carries a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating critical severity. Remote attackers with no privileges or user interaction can exploit it over the network with low attack complexity, achieving high impacts on confidentiality, integrity, and availability within the affected application scope.
Apple's security advisories confirm the issues were fixed via improved input validation in the listed updates. Mitigation requires applying these patches promptly across affected devices. Relevant advisories are available at https://support.apple.com/en-us/124147, https://support.apple.com/en-us/124149, https://support.apple.com/en-us/124153, https://support.apple.com/en-us/124154, and https://support.apple.com/en-us/124155.
Details
- CWE(s)