Microsoft Windows Vista SP2 up to Server 2016 Uniscribe LoadUvsTable data processing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in Microsoft Windows (Operating System). This affects the function LoadUvsTable of the component Uniscribe. The manipulation with an unknown input leads to a data processing vulnerability. CWE is classifying the issue as CWE-19. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 12/13/2016 by Hossein Lotfi with Secunia Research as MS16-147 as confirmed bulletin (Technet). The advisory is shared at This vulnerability is uniquely identified as CVE-2016-7274 since 09/09/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known.

A public exploit has been developed by Hossein Lotfi and been published 4 months after the advisory. The exploit is shared for download at It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 95766 (MS16-147: Security Update for Microsoft Uniscribe (3204063)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins.

Applying the patch MS16-147/MS17-013 is able to eliminate this problem. The bugfix is ready for download at A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (41615), Tenable (95766) and SecurityFocus (BID 94758†). Further details are available at







CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
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NVD Base Score: 8.8
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Class: Data processing

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Hossein Lotfi
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Nessus ID: 95766
Nessus Name: MS16-147: Security Update for Microsoft Uniscribe (3204063)
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OpenVAS ID: 831031
OpenVAS Name: Microsoft Uniscribe Remote Code Execution Vulnerability (3204063)
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Threat Intelligenceinfo

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Recommended: Patch
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Patch: MS16-147/MS17-013


09/09/2016 🔍
12/13/2016 +95 days 🔍
12/13/2016 +0 days 🔍
12/14/2016 +1 days 🔍
12/20/2016 +6 days 🔍
03/14/2017 +84 days 🔍
03/15/2017 +1 days 🔍
03/15/2017 +0 days 🔍
10/08/2022 +2033 days 🔍



Advisory: MS16-147
Researcher: Hossein Lotfi
Organization: Secunia Research
Status: Confirmed

CVE: CVE-2016-7274 (🔍)

SecurityTracker: 1037440
SecurityFocus: 94758 - Microsoft Windows Uniscribe CVE-2016-7274 Remote Code Execution Vulnerability

scip Labs:
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Created: 12/14/2016 02:10 PM
Updated: 10/08/2022 10:37 AM
Changes: 12/14/2016 02:10 PM (76), 04/07/2017 01:16 PM (15), 10/08/2022 10:31 AM (5), 10/08/2022 10:37 AM (1)
Complete: 🔍
Cache ID: 44:C3F:40


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