CVE-2021-30952

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

24/08/2021

Last modified:

06/03/2026

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

6.80

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:apple:safari::::::::		15.2 (excluding)
cpe:2.3:o:apple:ipados::::::::		15.2 (excluding)
cpe:2.3:o:apple:iphone_os::::::::		15.2 (excluding)
cpe:2.3:o:apple:macos::::::::	12.0 (including)	12.1 (excluding)
cpe:2.3:o:apple:tvos::::::::		15.2 (excluding)
cpe:2.3:o:apple:watchos::::::::		8.3 (excluding)
cpe:2.3:o:fedoraproject:fedora:34:::::::*
cpe:2.3:o:fedoraproject:fedora:35:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*
cpe:2.3:o:debian:debian_linux:11.0:::::::*
cpe:2.3:a:webkitgtk:webkitgtk::::::::		2.34.4 (excluding)
cpe:2.3:a:wpewebkit:wpe_webkit::::::::		2.34.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-30952

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools