Vulnerability Name:

CVE-2020-1321 (CCN-182531)

Assigned:2019-11-04
Published:2020-06-09
Updated:2021-07-21
Summary:A remote code execution vulnerability exists in Microsoft Office software when it fails to properly handle objects in memory, aka 'Microsoft Office Remote Code Execution Vulnerability'.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
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)
6.8 Medium (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:U/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:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
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 Type:CWE-119
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-1321

Source: XF
Type: UNKNOWN
ms-office-cve20201321-code-exec(182531)

Source: CCN
Type: Microsoft Security TechCenter - June 2020
Microsoft Office Remote Code Execution Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1321

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:365_apps:-:*:*:*:enterprise:*:*:*
  • OR cpe:/a:microsoft:office:2016:*:*:*:*:macos:*:*
  • OR cpe:/a:microsoft:office:2019:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:office:2019:*:*:*:*:macos:*:*

  • Configuration CCN 1:
  • cpe:/a:microsoft:office:2016::~~~mac~~:*:*:*:*:*
  • OR cpe:/a:microsoft:office:2019:*:~~~click-to-run~~:*:*:*:x32:*
  • OR cpe:/a:microsoft:office:2019:*:*:*:click-to-run:*:x64:*
  • OR cpe:/a:microsoft:office:2019:*:mac:*:*:*:*:*
  • OR cpe:/a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*

  • * Denotes that component is vulnerable
    BACK
    microsoft 365 apps -
    microsoft office 2016
    microsoft office 2019
    microsoft office 2019
    microsoft office 2016
    microsoft office 2019
    microsoft office 2019
    microsoft office 2019
    microsoft 365 apps -