8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
75.2%
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
Recent assessments:
Assessed Attacker Value: 0
Assessed Attacker Value: 0Assessed Attacker Value: 0
seclists.org/fulldisclosure/2021/Sep/25
seclists.org/fulldisclosure/2021/Sep/27
seclists.org/fulldisclosure/2021/Sep/29
seclists.org/fulldisclosure/2021/Sep/38
seclists.org/fulldisclosure/2021/Sep/39
seclists.org/fulldisclosure/2021/Sep/50
www.openwall.com/lists/oss-security/2021/09/20/1
www.openwall.com/lists/oss-security/2021/10/26/9
www.openwall.com/lists/oss-security/2021/10/27/1
www.openwall.com/lists/oss-security/2021/10/27/2
www.openwall.com/lists/oss-security/2021/10/27/4
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30858
lists.fedoraproject.org/archives/list/[email protected]/message/BO6DMTHZR57JDBOXPSNR2MKDMCRWV265/
lists.fedoraproject.org/archives/list/[email protected]/message/XYNV7ASK4LQVAUMJXNXBS3Z7RVDQ2N3W/
support.apple.com/en-us/HT212804
support.apple.com/en-us/HT212807
support.apple.com/kb/HT212824
www.debian.org/security/2021/dsa-4975
www.debian.org/security/2021/dsa-4976
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
0.006 Low
EPSS
Percentile
75.2%