7.0
High
Exploited
CVE-2021-1782 Apple Multiple Products Race Condition Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-362, CWE-667
Description
A race condition was addressed with improved locking. 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 malicious application may be able to elevate privileges. Apple is aware of a report that this issue may have been actively exploited..
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| iOS and iPadOS 14.4 | earliest → < 14.4 | 14.4 |
| macOS 14.4 | earliest → < 14.4 | 14.4 |
References
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
- support.apple.com support.apple.com
Timeline
- Published
- Added to the KEV catalogue
- Last modified
Other CVEs of iOS and iPadOS
The 2049 CVEs of iOS and iPadOS →
CVE-2026-86925
An authorization issue was addressed with improved state management
5.5
Medium
CVE-2026-84627
A buffer overflow was addressed with improved bounds checking
7.8
High
CVE-2026-86972
A buffer overflow was addressed with improved size validation
7.8
High
CVE-2026-113912
An out-of-bounds access issue was addressed with improved bounds checking
7.1
High