Vulnerability Intelligence Report
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
CVE-2021-30952
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:7.62%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-190 ↗CWE-190 Integer Overflow or Wraparound
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | watchOS | unspecified < 8.3 (affected) |
| Apple | iOS and iPadOS | unspecified < 15.2 (affected) |
| Apple | macOS | unspecified < 12.1 (affected) |
| Apple | macOS | unspecified < 15.2 (affected) |
| Apple | macOS | unspecified < 15.2 (affected) |
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
EPSS Score
7.617%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2021-04-13T00:00:00 |
| Published | 2021-08-24T18:50:52 |
| Last Updated | 2026-03-06T05:01:17 |
Community Chatter & Buzz