Vulnerability · Published Apr 2, 2021 · Assigned by apple

CVE-2020-9955

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 1.1% (higher than 64% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.1%top 35.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0, macOS Big Sur 11.0.1. Processing a maliciously crafted image may lead to arbitrary code execution.

Affected products (as reported)

Vendor	Product	Versions
Apple	tvOS	unspecified – before 14.0
Apple	watchOS	unspecified – before 7.0
Apple	iOS and iPadOS	unspecified – before 14.0
Apple	macOS	unspecified – before 11.0

References

https://support.apple.com/en-us/HT211843 x_refsource_MISC
https://support.apple.com/en-us/HT211850 x_refsource_MISC
https://support.apple.com/en-us/HT211844 x_refsource_MISC
https://support.apple.com/en-us/HT211931 x_refsource_MISC