CVE DATABASE / CVE-2021-31010
CVE-2021-31010
Apple iOS, macOS, watchOS Sandbox Bypass Vulnerability
Confirmed exploited in the wild. Added 2022-08-25.
Federal remediation due 2022-09-15.
Required action: Apply updates per vendor instructions.
Summary
A deserialization issue was addressed through improved validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 12.5.5, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. A sandboxed process may be able to circumvent sandbox restrictions. Apple was aware of a report that this issue may have been actively exploited at the time of release..
CVSS 3.1 breakdown
| Base score | 7.5 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity | HIGH |
| Availability | NONE |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- https://support.apple.com/en-us/HT212804
- https://support.apple.com/en-us/HT212805
- https://support.apple.com/en-us/HT212806
- https://support.apple.com/en-us/HT212807
- https://support.apple.com/en-us/HT212824
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-31010
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-23. Always verify against the vendor advisory before acting.