CVE:CVE-2021-30798
CNNVD:CNNVD-202107-1635
Apple macOS Big Sur是美国苹果（Apple）公司的一个手机应用APP。
Apple macOS Big Sur 11.5存在竞争条件问题漏洞，该漏洞源于TCC的竞争条件问题。该漏洞允许本地用户绕过已有的安全限制。
solution:Upgrade apple iphone_os to a higher version than 14.7,and avoid the version (,14.7); Upgrade apple macos to a higher version than 11.5,and avoid the version (,11.5); Upgrade apple watchos to a higher version than 7.6,and avoid the version (,7.6)