Use after free in Apple iOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.
Summary
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS | before 14.7 | 14.7 | Patch available | CNA |
| Apple | tvOS | before 14.7 | 14.7 | Patch available | CNA |
Remediation
- Fix · CNA iOS (Apple) Fixed in 14.7
- Fix · CNA tvOS (Apple) Fixed in 14.7
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS 14.7
29 records Highest priority Priority MEDIUM 5 MEDIUM, 24 LOW
Other records, highest priority first
- TI-2021-11176 Out-of-bounds write in Apple Security Update - CatalinaPriority MEDIUM 42
- TI-2021-11174 Apple iOS: Processing maliciously crafted web content may lead to code executionPriority MEDIUM 42
- TI-2021-11172 Use after free in Apple iOSPriority MEDIUM 42
- Release ·
Apple tvOS 14.7
4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2021-11151 Apple iOS: A malicious application may be able to bypass code signing checksPriority LOW 27
- TI-2021-11147 Improper authentication in Apple iOSPriority LOW 27
- TI-2021-11148 Improper authentication in Apple iOSPriority LOW 25
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30802
- 2026-10-03 Alias added: GHSA-c9vc-847w-w9p5
References
More Apple Iphone Os vulnerabilities
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-30802 · CVE Program
- CVE-2021-30802 · NVD
- FIRST EPSS
- GHSA-c9vc-847w-w9p5 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences