8.8
CVE-2021-1789
- EPSS 0.37%
- Published 02.04.2021 18:15:21
- Last modified 28.02.2025 14:44:48
- Source product-security@apple.com
- Teams watchlist Login
- Open Login
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.
Data is provided by the National Vulnerability Database (NVD)
Fedoraproject ≫ Fedora Version32
Fedoraproject ≫ Fedora Version33
04.05.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog
Apple Multiple Products Type Confusion Vulnerability
VulnerabilityA type confusion issue affecting multiple Apple products allows processing of maliciously crafted web content, leading to arbitrary code execution.
DescriptionApply updates per vendor instructions.
Required actions| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.37% | 0.582 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 8.8 | 2.8 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
|
| nvd@nist.gov | 6.8 | 8.6 | 6.4 |
AV:N/AC:M/Au:N/C:P/I:P/A:P
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 8.8 | 2.8 | 5.9 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
|
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.