CVE-2021-1871
CRITICAL9.8⚠ KEVEPSS 0.48%Apple iOS, iPadOS, and macOS WebKit Remote Code Execution Vulnerability
Published: 4/2/2021Modified: 4/28/2026Added to CISA KEV: 11/3/2021
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..
Affected packages (2)
- Debian/webkit2gtkfrom 0, < 2.32.0-2
- Debian/wpewebkitfrom 0, < 2.32.0-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |