Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-1816

High 7.8

In plain English

A high-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 1.6% (higher than 75% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.6%top 24.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A malicious application may be able to execute arbitrary code with kernel privileges.

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

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