CVE-2021-30952

webkitgtk: Processing maliciously crafted web content may lead to arbitrary code execution

Published Aug 24, 2021 CVSS 3.1 · 8.8 High EPSS 7.0% KEV · Listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-5060-1 webkit2gtk security update
Debian DSA Debian DSA DSA-5061-1 wpewebkit security update
EUVD EUVD EUVD-2021-17869 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.
Ubuntu USN Ubuntu USN USN-5255-1 WebKitGTK vulnerabilities
History
Type Values Removed Values Added
First Time appeared Webkitgtk
Webkitgtk webkitgtk
Wpewebkit
Wpewebkit wpe Webkit
CPEs cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*
cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*
Vendors & Products Webkitgtk
Webkitgtk webkitgtk
Wpewebkit
Wpewebkit wpe Webkit
Type Values Removed Values Added
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}

cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2026-03-05T00:00:00+00:00', 'dueDate': '2026-03-26T00:00:00+00:00'}

Type Values Removed Values Added
Metrics epss

{'score': 0.00422}

epss

{'score': 0.00398}

Type Values Removed Values Added
Metrics epss

{'score': 0.00333}

epss

{'score': 0.00422}

Type Values Removed Values Added
Metrics epss

{'score': 0.00218}

epss

{'score': 0.00333}

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els