CVE-2026-28875
Published: 25 March 2026
Summary
CVE-2026-28875 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Apple Ipados. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 33.4th 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
Requires timely identification, reporting, and remediation of flaws like this buffer overflow by installing the fixed iOS/iPadOS 26.4 versions.
Mandates validation of external inputs with bounds checking to directly prevent buffer overflows from malicious network data.
Implements memory protections such as address space layout randomization and stack guards to mitigate exploitation of buffer overflow vulnerabilities.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Buffer overflow enables remote crash of iOS/iPadOS devices (AV:N, A:H impact only), directly mapping to Application or System Exploitation for Endpoint Denial of Service.
NVD Description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote attacker may be able to cause a denial-of-service.
Deeper analysisAI
CVE-2026-28875 is a buffer overflow vulnerability (CWE-120) affecting iOS and iPadOS prior to version 26.4. Apple addressed the issue with improved bounds checking. The vulnerability carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating high availability impact potential with no confidentiality or integrity effects.
A remote attacker can exploit this vulnerability over the network with low complexity, requiring no privileges or user interaction. Successful exploitation may cause a denial-of-service, potentially crashing affected iOS or iPadOS devices.
Apple's security advisory (https://support.apple.com/en-us/126792) confirms the fix in iOS 26.4 and iPadOS 26.4 through enhanced bounds checking. Practitioners should prioritize updating vulnerable devices to these versions to mitigate the risk.
Details
- CWE(s)