Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-1814

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 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.2%top 32.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.

Affected products (as reported)

Vendor	Product	Versions
Apple	watchOS	unspecified – before 7.4
Apple	macOS	unspecified – before 11.3

References

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