CVE-2021-30666: Apple iOS WebKit Buffer Overflow Vulnerability
A buffer overflow issue was addressed with improved memory handling.
Other sources
Apple iOS WebKit contains a buffer-overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
— CISA
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is CVE-2021-30666?
CVE-2021-30666 is a buffer-overflow vulnerability in Apple iOS WebKit.
How does CVE-2021-30666 affect Apple iOS?
CVE-2021-30666 may allow for code execution when processing maliciously crafted web content on Apple iOS.
Who is affected by CVE-2021-30666?
Users of Apple iOS versions up to and including 12.5.3 are affected by CVE-2021-30666.
How severe is CVE-2021-30666?
CVE-2021-30666 is a buffer-overflow vulnerability that can potentially lead to code execution.
How can I fix CVE-2021-30666?
To fix CVE-2021-30666, users should update their Apple iOS to version 12.5.4 or later.