// For flags

CVE-2017-0226

Microsoft Internet Explorer Enhanced Protected Mode Sandbox Escape Vulnerability

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A remote code execution vulnerability exists when Internet Explorer improperly accesses objects in memory, aka "Internet Explorer Memory Corruption Vulnerability." This CVE ID is unique from CVE-2017-0222.

Existe una vulnerabilidad de ejecución remota de código cuando Internet Explorer accede incorrectamente a objetos en la memoria, también conocido como "Vulnerabilidad de corrupción de memoria de Internet Explorer". Este CVE ID es exclusivo de CVE-2017-0222.

This vulnerability allows remote attackers to escape the Enhanced Protected Mode (EPM) sandbox on vulnerable installations of Microsoft Internet Explorer. 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 due to the EPM sandbox allowing low-privileged code to perform various operations, such as modifying certain low-integrity parts of the file system and calling specific APIs. Considered individually, these operations do not pose a risk. However, they can be used in combination to produce an unsafe result. An attacker can leverage this in conjunction with other vulnerabilities to execute code under the context of the user at medium integrity.

*Credits: Thomas Vanhoutte
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-09-09 CVE Reserved
  • 2017-05-10 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-09-18 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
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"
 Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
 10
Search vendor "Microsoft" for product "Internet Explorer" and version "10"
-
Affected
Microsoft
Search vendor "Microsoft"
 Internet Explorer
Search vendor "Microsoft" for product "Internet Explorer"
 11
Search vendor "Microsoft" for product "Internet Explorer" and version "11"
-
Affected