CVE-2021-30869
Last modified
CVE-2021-30869 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. CISA has confirmed active exploitation in the wild. EPSS estimates a 4.15% chance of exploitation in the next 30 days.
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 12.5.5, iOS 14.4 and iPadOS 14.4, macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, Security Update 2021-006 Catalina. A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Apple | Ipados | < 14.4 | — |
| Apple | Iphone Os | >= 12.0, < 12.5.5 | — |
| Apple | Iphone Os | >= 14.0, < 14.4 | — |
| Apple | Mac Os X | >= 10.14, <= 10.14.6 | — |
| Apple | Mac Os X | >= 10.15, <= 10.15.6 | — |
| Apple | Mac Os X | 10.14.6 | Security Update 2019-001 |
| Apple | Mac Os X | 10.15.7 | — |
| Apple | Macos | >= 11.0, < 11.2 | — |
References
- https://support.apple.com/en-us/HT212146Vendor Advisory
- https://support.apple.com/en-us/HT212147Vendor Advisory
- https://support.apple.com/en-us/HT212824Vendor Advisory
- https://support.apple.com/en-us/HT212825Vendor Advisory
- https://support.apple.com/en-us/HT212146Vendor Advisory
- https://support.apple.com/en-us/HT212147Vendor Advisory
- https://support.apple.com/en-us/HT212824Vendor Advisory
- https://support.apple.com/en-us/HT212825Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30869US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
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.
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