CVE-2021-30952 — Apple Multiple Products Integer Overflow or Wraparound Vulnerability
2026-03-05 • CISA Known Exploited Vulnerability
[event] Apple tvOS, macOS, Safari, iPadOS and watchOS contain an integer overflow or wraparound vulnerability due to the processing of maliciously crafted web content that may lead to arbitrary code execution.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Apple |
| Product | Multiple Products |
| CWE | CWE-190 |
| CVE ID | CVE-2021-30952 |
| Date Added | 2026-03-05 |
| Due Date | 2026-03-26 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2026-03-26