Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-1770

Critical 9.8

In plain English

A critical-severity security flaw in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.8% (higher than 86% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)2.8%top 13.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A buffer overflow may result in arbitrary code execution. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A logic issue was addressed with improved state management.

Affected products (as reported)

Vendor	Product	Versions
Apple	iOS and iPadOS	unspecified – before 14.5
Apple	tvOS	unspecified – before 14.5
Apple	watchOS	unspecified – before 7.4
Apple	macOS	unspecified – before 11.3

References

https://support.apple.com/en-us/HT212317 x_refsource_MISC
https://support.apple.com/en-us/HT212323 x_refsource_MISC
https://support.apple.com/en-us/HT212324 x_refsource_MISC
https://support.apple.com/en-us/HT212325 x_refsource_MISC