VulnerabilityModified
CVE-2021-30818
Processing maliciously crafted web content may lead to arbitrary code execution.
HIGH 8.8EPSS 1.62%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.62%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, Safari 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.62% probability · 75th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-843
- Affected
- apple/safari · apple/ipados · apple/iphone os · apple/macos · apple/tvos · apple/watchos
- Source
- product-security@apple.com
References
- http://www.openwall.com/lists/oss-security/2021/12/20/6Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212814Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212815Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212816Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212819Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT212869Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/12/20/6Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212814Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212815Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212816Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212819Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT212869Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.