CVEvulnerability
CVE-2021-1764
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-04-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-416
Description
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause a denial of service.
Affected configurations
• apple ipados (< 14.4)
• apple iphone os (< 14.4)
• apple mac os x (>= 10.14 < 10.14.6)
• apple mac os x (>= 10.15 < 10.15.7)
• apple mac os x 10.14.6
• apple mac os x 10.15.7
• apple macos (>= 11.0 < 11.2)
• apple tvos (< 14.4)
• apple watchos (< 7.3)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://support.apple.com/en-us/HT212146 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212147 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212148 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212149 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212146 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212147 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212148 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212149 Release Notes, Vendor Advisory