CVE-2021-1817

high

Description

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to arbitrary code execution.

References

https://support.apple.com/en-us/HT212317

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

https://support.apple.com/en-us/HT212323

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

Details

Source: MITRE

Published: 2021-09-08

Updated: 2021-09-16

Type: CWE-787

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH