Microsoft Lync 2010 Search untrusted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Microsoft Lync 2010 (Unified Communication Software). It has been rated as critical. This issue affects an unknown code block of the component Search Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-426. Impacted is confidentiality, integrity, and availability.

The weakness was released 06/12/2012 by Hamburgers Maccoy as MS12-039 as confirmed bulletin (Technet). It is possible to read the advisory at The identification of this vulnerability is CVE-2012-1849 since 03/22/2012. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Technical details are unknown but an exploit is available.

It is declared as proof-of-concept. The exploit is available at We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 59457 (MS12-039: Vulnerabilities in Lync Could Allow Remote Code Execution (2707956)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90811 (Microsoft Lync Remote Code Execution Vulnerability (MS12-039)).

Applying the patch MS12-039 is able to eliminate this problem. The bugfix is ready for download at A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12329.

The vulnerability is also documented in the databases at SecurityFocus (BID 53831), Vulnerability Center (SBV-35303) and Tenable (59457).





CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Privilege escalation
CWE: CWE-426
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Nessus ID: 59457
Nessus Name: MS12-039: Vulnerabilities in Lync Could Allow Remote Code Execution (2707956)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902842
OpenVAS Name: Microsoft Lync Remote Code Execution Vulnerabilities (2707956)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS12-039
TippingPoint: 🔍
ISS Proventia IPS: 🔍
Fortigate IPS: 🔍


03/22/2012 🔍
06/12/2012 +82 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/12/2012 +0 days 🔍
06/13/2012 +1 days 🔍
02/14/2014 +611 days 🔍
03/26/2017 +1136 days 🔍
06/09/2021 +1536 days 🔍



Advisory: MS12-039
Researcher: Hamburgers Maccoy
Status: Confirmed

CVE: CVE-2012-1849 (🔍)

SecurityFocus: 53831 - Microsoft Lync CVE-2012-1849 DLL Loading Arbitrary Code Execution Vulnerability
Vulnerability Center: 35303 - [MS12-039] Microsoft Lync Untrusted Search Path Vulnerability Allows Local Privilege Escalation, Medium


Created: 02/14/2014 02:50 PM
Updated: 06/09/2021 02:38 PM
Changes: (4) source_nessus_risk source_exploitdb exploit_price_0day vulnerability_cvss2_nvd_basescore
Complete: 🔍


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