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CVE-2021-30952

CWE-190

High

89.1

RPS

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.

Source: NVD

Signals

CVSS
7.8
High · v3.1
EPSS
6.96%
Probability of exploitation in the next 30 days (FIRST)
CISA KEV
In CISA KEV since Mar 2026
Fix commit
No known fix commit
Sources: MoreFixes, FreshFixes
Weakness
CWE-190
Published
24 Aug 2021
Last modified 6 Mar 2026

How to read these signals: RPS · EPSS · CISA KEV · Data sources

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Data as of 7 Oct 2026, 05:16 UK time

CVE-2021-30952 · RPS 89.1 · DevSecure Intelligence