CVE-2011-1961 : The telnet URI handler in Microsoft Internet Explorer 6 through 9 does not prope

The telnet URI handler in Microsoft Internet Explorer 6 through 9 does not properly launch the handler application, which allows remote attackers to execute arbitrary programs via a crafted web site, aka "Telnet Handler Remote Code Execution Vulnerability."

Published 2011-08-10 21:55:01

Updated 2022-02-28 19:54:36

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2011-1961

Microsoft » Internet Explorer » Version: 6
cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2003 » Version: N/A Update SP2
When used together with: Microsoft » Windows Xp » Version: N/A Update SP2 For X64
When used together with: Microsoft » Windows Xp » Version: N/A Update SP3
Microsoft » Internet Explorer » Version: 7
cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows Server 2003 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Vista » Version: N/A Update SP1
When used together with: Microsoft » Windows Vista » Version: N/A Update SP2
When used together with: Microsoft » Windows Xp » Version: N/A Update SP2 Professional Edition For X64
When used together with: Microsoft » Windows Xp » Version: N/A Update SP3
Microsoft » Internet Explorer » Version: 8
cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A
When used together with: Microsoft » Windows Server 2003 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: N/A
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: R2
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1
When used together with: Microsoft » Windows Vista » Version: N/A Update SP1
When used together with: Microsoft » Windows Vista » Version: N/A Update SP2
When used together with: Microsoft » Windows Xp » Version: N/A Update SP2 Professional Edition For X64
When used together with: Microsoft » Windows Xp » Version: N/A Update SP3
Microsoft » Internet Explorer » Version: 9
cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
Matching versions
When used together with: Microsoft » Windows 7 » Version: N/A
When used together with: Microsoft » Windows 7 » Version: N/A Update SP1
When used together with: Microsoft » Windows Server 2008 » Version: N/A Update SP2
When used together with: Microsoft » Windows Server 2008 » Version: R2
When used together with: Microsoft » Windows Server 2008 » Version: R2 Update SP1
When used together with: Microsoft » Windows Vista » Version: N/A Update SP2

Exploit prediction scoring system (EPSS) score for CVE-2011-1961

EPSS FAQ

91.66%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 99 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-1961

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
9.3	HIGH	AV:N/AC:M/Au:N/C:C/I:C/A:C	8.6	10.0	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete

References for CVE-2011-1961

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-057

Microsoft Security Bulletin MS11-057 - Critical | Microsoft Docs
Patch;Vendor Advisory

CVEs referencing this url
http://jvn.jp/en/jp/JVN80404511/index.html

JVN#80404511: Windows URL Protocol Handler may insecurely load executable files
Third Party Advisory;VDB Entry
http://jvndb.jvn.jp/ja/contents/2011/JVNDB-2011-000060.html

JVNDB-2011-000060 - JVN iPedia - 脆弱性対策情報データベース
Third Party Advisory;VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12684

Repository / Oval Repository
Tool Signature
http://www.us-cert.gov/cas/techalerts/TA11-221A.html

Microsoft Updates for Multiple Vulnerabilities | CISA
Third Party Advisory;US Government Resource

CVEs referencing this url

Jump to

Vulnerability Details : CVE-2011-1961

Products affected by CVE-2011-1961

Exploit prediction scoring system (EPSS) score for CVE-2011-1961

CVSS scores for CVE-2011-1961

References for CVE-2011-1961