Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-30776

Medium 5.5

In plain English

A medium-severity security flaw in iOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium

Exploit odds (30 days)1.0%top 36.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A logic issue was addressed with improved validation. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Playing a malicious audio file may lead to an unexpected application termination.

Affected products (as reported)

Vendor	Product	Versions
Apple	Security Update - Catalina	unspecified – before 2021
Apple	iOS	unspecified – before 14.7
Apple	macOS	unspecified – before 11.5
Apple	macOS	unspecified – before 14.7
Apple	macOS	unspecified – before 7.6

References

https://support.apple.com/en-us/HT212601 x_refsource_MISC
https://support.apple.com/en-us/HT212602 x_refsource_MISC
https://support.apple.com/en-us/HT212605 x_refsource_MISC
https://support.apple.com/en-us/HT212600 x_refsource_MISC
https://support.apple.com/en-us/HT212604 x_refsource_MISC