8.8
High
CVE-2021-30952 Apple Multiple Products Integer Overflow or Wraparound Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Ransomware campaigns
Not observed so far
Weakness
CWE-190
Description
An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| watchOS 8.3 | earliest → < 8.3 | 8.3 |
| iOS and iPadOS 15.2 | earliest → < 15.2 | 15.2 |
| macOS 15.2 | earliest → < 15.2 | 15.2 |
Other CVEs of watchOS
The 1458 CVEs of watchOS →
CVE-2026-86972
A buffer overflow was addressed with improved size validation
7.8
High
CVE-2026-86964
A null pointer dereference was addressed with improved input validation
7.5
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CVE-2026-113904
A use-after-free issue was addressed with improved memory management
4.3
Medium
CVE-2026-112682
An input validation issue was addressed with improved input validation
7.5
High