// For flags

CVE-2021-36928

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Severity Score

6.0
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Microsoft Edge (Chromium-based) Elevation of Privilege Vulnerability

Una Vulnerabilidad de ElevaciĆ³n de Privilegios en Microsoft Edge (basado en Chromium). Este ID de CVE es diferente de CVE-2021-36931.

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Edge. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within Edge Installer. By creating a directory junction, an attacker can abuse Edge Installer to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM.

*Credits: Abdelhamid Naceri
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
None
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2021-07-19 CVE Reserved
  • 2021-08-03 CVE Published
  • 2024-10-27 EPSS Updated
  • 2024-11-18 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')
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"
Edge Chromium
Search vendor "Microsoft" for product "Edge Chromium"
< 92.0.902.55
Search vendor "Microsoft" for product "Edge Chromium" and version " < 92.0.902.55"
-
Affected