CVE-2020-9821
Last modified
CVE-2020-9821 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. EPSS estimates a 1.32% chance of exploitation in the next 30 days.
Description
A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5. A malicious application may be able to execute arbitrary code with kernel privileges.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 13.5 |
| Apple | Iphone Os | < 13.5 |
| Apple | Mac Os X | < 10.15.5 |
| Apple | Tvos | < 13.4.5 |
| Apple | Watchos | < 6.2.5 |
References
- https://support.apple.com/HT211168Vendor Advisory
- https://support.apple.com/HT211170Vendor Advisory
- https://support.apple.com/HT211171Vendor Advisory
- https://support.apple.com/HT211175Vendor Advisory
- https://support.apple.com/HT211168Vendor Advisory
- https://support.apple.com/HT211170Vendor Advisory
- https://support.apple.com/HT211171Vendor Advisory
- https://support.apple.com/HT211175Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
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- CVE-2020-9818An out-of-bounds write issue was addressed with improved bou…8.8
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- CVE-2020-9822An out-of-bounds write issue was addressed with improved bou…7.8
- CVE-2020-9823This issue was addressed with improved checks. This issue is…7.5
- CVE-2020-9824A logic issue was addressed with improved restrictions. This…7.5
- CVE-2020-9825An access issue was addressed with additional sandbox restri…7.8
- CVE-2020-9826A denial of service issue was addressed with improved input …7.5
- CVE-2020-9827A denial of service issue was addressed with improved input …7.5
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