Vulnerability · Published Feb 27, 2020 · Assigned by apple

CVE-2020-3856

High 7.8

In plain English

A high-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 0.9% (higher than 60% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)0.9%top 39.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.

Affected products (as reported)

Vendor	Product	Versions
Apple	iOS	unspecified – before iOS 13.3.1 and iPadOS 13.3.1
Apple	macOS	unspecified – before macOS Catalina 10.15.3
Apple	tvOS	unspecified – before tvOS 13.3.1
Apple	watchOS	unspecified – before watchOS 6.1.2

References

https://support.apple.com/HT210919 x_refsource_MISC
https://support.apple.com/HT210918 x_refsource_MISC
https://support.apple.com/HT210921 x_refsource_MISC
https://support.apple.com/HT210920 x_refsource_MISC