// For flags

CVE-2020-0906

Microsoft Excel XLS File Use-After-Free Remote Code Execution Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory, aka 'Microsoft Excel Remote Code Execution Vulnerability'. This CVE ID is unique from CVE-2020-0979.

Hay una vulnerabilidad de ejecución de código remota en el software Microsoft Excel cuando el software presenta un fallo al manejar apropiadamente objetos en memoria, también se conoce como "Microsoft Excel Remote Code Execution Vulnerability". Este ID de CVE es diferente de CVE-2020-0979.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Excel. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of XLS files. Crafted data in an XLS file can cause a pointer to be reused after it has been freed. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: hackyzh and lm0963 of DBAppSecurity Zion Lab
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-11-04 CVE Reserved
  • 2020-04-15 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Microsoft
Search vendor "Microsoft"
 Excel
Search vendor "Microsoft" for product "Excel"
 2010
Search vendor "Microsoft" for product "Excel" and version "2010"
sp2
Affected
Microsoft
Search vendor "Microsoft"
 Excel
Search vendor "Microsoft" for product "Excel"
 2013
Search vendor "Microsoft" for product "Excel" and version "2013"
sp1
Affected
Microsoft
Search vendor "Microsoft"
 Excel
Search vendor "Microsoft" for product "Excel"
 2013
Search vendor "Microsoft" for product "Excel" and version "2013"
sp1, rt
Affected
Microsoft
Search vendor "Microsoft"
 Excel
Search vendor "Microsoft" for product "Excel"
 2016
Search vendor "Microsoft" for product "Excel" and version "2016"
-
Affected
Microsoft
Search vendor "Microsoft"
 Office
Search vendor "Microsoft" for product "Office"
 2010
Search vendor "Microsoft" for product "Office" and version "2010"
sp2
Affected
Microsoft
Search vendor "Microsoft"
 Office
Search vendor "Microsoft" for product "Office"
 2013
Search vendor "Microsoft" for product "Office" and version "2013"
sp1
Affected
Microsoft
Search vendor "Microsoft"
 Office
Search vendor "Microsoft" for product "Office"
 2013
Search vendor "Microsoft" for product "Office" and version "2013"
sp1, rt
Affected
Microsoft
Search vendor "Microsoft"
 Office
Search vendor "Microsoft" for product "Office"
 2016
Search vendor "Microsoft" for product "Office" and version "2016"
-
Affected
Microsoft
Search vendor "Microsoft"
 Office
Search vendor "Microsoft" for product "Office"
 2019
Search vendor "Microsoft" for product "Office" and version "2019"
-
Affected
Microsoft
Search vendor "Microsoft"
 Office 365 Proplus
Search vendor "Microsoft" for product "Office 365 Proplus"
--
Affected