Vulnerability · Published Apr 2, 2021 · Assigned by apple

CVE-2021-1748

High 8.8

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 2.7% (higher than 86% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS NVD)8.8High

Exploit odds (30 days)2.7%top 13.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack tooling1Public PoC

Official description

A validation issue was addressed with improved input sanitization. This issue is fixed in tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.

Affected products (as reported)

Vendor	Product	Versions
Apple	iOS and iPadOS	unspecified – before 14.4
Apple	watchOS	unspecified – before 7.3
Apple	tvOS	unspecified – before 14.4

References

https://support.apple.com/en-us/HT212146 x_refsource_MISC
https://support.apple.com/en-us/HT212148 x_refsource_MISC
https://support.apple.com/en-us/HT212149 x_refsource_MISC