Vulnerability · Published Sep 8, 2021 · Assigned by apple
CVE-2021-30739
High 7.8
In plain English
A high-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).
Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 74.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A local attacker may be able to elevate their privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A memory corruption issue was addressed with improved validation.
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212529 x_refsource_MISC
- https://support.apple.com/en-us/HT212530 x_refsource_MISC
- https://support.apple.com/en-us/HT212531 x_refsource_MISC