| CVE-2021-1864 | Date: (C)2021-09-09 (M)2023-12-22 |
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An attacker with JavaScript execution may be able to execute arbitrary code.
CVSS Score and Metrics +CVSS Score and Metrics -| CVSS V3 Severity: | CVSS V2 Severity: |
| CVSS Score : 9.8 | CVSS Score : 7.5 |
| Exploit Score: 3.9 | Exploit Score: 10.0 |
| Impact Score: 5.9 | Impact Score: 6.4 |
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| CVSS V3 Metrics: | CVSS V2 Metrics: |
| Attack Vector: NETWORK | Access Vector: NETWORK |
| Attack Complexity: LOW | Access Complexity: LOW |
| Privileges Required: NONE | Authentication: NONE |
| User Interaction: NONE | Confidentiality: PARTIAL |
| Scope: UNCHANGED | Integrity: PARTIAL |
| Confidentiality: HIGH | Availability: PARTIAL |
| Integrity: HIGH | |
| Availability: HIGH | |
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