CVE-2021-30952

Published Aug 24, 2021

Last updated 3 hours ago

Overview

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
product-security@apple.com
NVD status
Modified
Products
safari, ipados, iphone_os, macos, tvos, watchos, fedora, debian_linux

Risk scores

CVSS 3.1

Type
Primary
Base score
7.8
Impact score
5.9
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 2.0

Type
Primary
Base score
6.8
Impact score
6.4
Exploitability score
8.6
Vector string
AV:N/AC:M/Au:N/C:P/I:P/A:P

Known exploits

Data from CISA

Vulnerability name
Apple Multiple Products Integer Overflow or Wraparound Vulnerability
Exploit added on
Mar 5, 2026
Exploit action due
Mar 26, 2026
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.

Weaknesses

nvd@nist.gov
CWE-190
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-190

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.