Microsoft Edge Scripting Engine memory corruption

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 Edge (Web Browser) (affected version not known). It has been declared as critical. This vulnerability affects some unknown functionality of the component Scripting Engine. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/08/2016 by Nicolas Joly as MS16-129 as confirmed bulletin (Technet). The advisory is available at This vulnerability was named CVE-2016-7243 since 09/09/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/29/2022).

The vulnerability scanner Nessus provides a plugin with the ID 94630 (MS16-129: Cumulative Security Update for Microsoft Edge (3199057)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 91300 (Microsoft Edge Cumulative Security Update (MS16-129)).

Applying the patch MS16-129 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.

The vulnerability is also documented in the vulnerability database at Tenable (94630). The entries 93366, 93367, 93368 and 93369 are pretty similar.






  • commercial

CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍



VulDB Base Score: 🔍
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Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍


Nessus ID: 94630
Nessus Name: MS16-129: Cumulative Security Update for Microsoft Edge (3199057)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802074
OpenVAS Name: Microsoft Edge Multiple Vulnerabities (3199057)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Recommended: Patch
Status: 🔍

Reaction Time: 🔍
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Patch: MS16-129


09/09/2016 🔍
11/08/2016 +60 days 🔍
11/08/2016 +0 days 🔍
11/08/2016 +0 days 🔍
11/08/2016 +0 days 🔍
11/09/2016 +1 days 🔍
11/10/2016 +1 days 🔍
09/29/2022 +2149 days 🔍



Advisory: MS16-129
Researcher: Nicolas Joly
Status: Confirmed

CVE: CVE-2016-7243 (🔍)

SecurityTracker: 1037245
SecurityFocus: 94047 - Microsoft Edge CVE-2016-7243 Scripting Engine Remote Memory Corruption Vulnerability

See also: 🔍


Created: 11/09/2016 09:51 AM
Updated: 09/29/2022 07:32 PM
Changes: 11/09/2016 09:51 AM (69), 05/27/2019 10:28 PM (12), 09/29/2022 07:32 PM (4)
Complete: 🔍


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