Description
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Published: 2021-04-02
Score: 9.8 Critical
EPSS: 1.2% Low
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4877-1 webkit2gtk security update
EUVD EUVD EUVD-2021-7334 A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
Ubuntu USN Ubuntu USN USN-4894-1 WebKitGTK vulnerabilities
History

Wed, 22 Oct 2025 00:30:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.0045}

epss

{'score': 0.00524}


Mon, 07 Jul 2025 14:00:00 +0000

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

Fri, 28 Feb 2025 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
CPEs cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Vendors & Products Apple ipad Os
Apple ipados

Wed, 29 Jan 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2021-11-03'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 14 Aug 2024 01:00:00 +0000

Type Values Removed Values Added
References

Subscriptions

Apple Ipados Iphone Os Mac Os X Macos
Fedoraproject Fedora
Redhat Enterprise Linux Rhel Els
Webkitgtk Webkitgtk
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2025-10-21T23:25:49.985Z

Reserved: 2020-12-08T00:00:00.000Z

Link: CVE-2021-1870

cve-icon Vulnrichment

Updated: 2024-08-03T16:25:06.462Z

cve-icon NVD

Status : Analyzed

Published: 2021-04-02T19:15:20.567

Modified: 2025-10-23T18:01:44.367

Link: CVE-2021-1870

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-03-22T00:00:00Z

Links: CVE-2021-1870 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses