Vulnerability Name:

CVE-2021-30736 (CCN-202336)

Assigned:2021-05-24
Published:2021-05-24
Updated:2023-01-09
Summary:
CVSS v3 Severity:7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.0 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.0 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2021-30736

Source: XF
Type: UNKNOWN
apple-ios-cve202130736-bo(202336)

Source: CCN
Type: Packet Storm Security [07-14-2021]
XNU Network Stack Kernel Heap Overflow

Source: CCN
Type: Apple security document HT212528
About the security content of iOS 14.6 and iPadOS 14.6

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: CCN
Type: Apple security document HT212529
About the security content of macOS Big Sur 11.4

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Source: product-security@apple.com
Type: Vendor Advisory
product-security@apple.com

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:apple:ipados:14.5:*:*:*:*:*:*:*
  • OR cpe:/o:apple:ios:14.5:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    apple ipados 14.5
    apple ios 14.5