Microsoft Script Runtime Remote Code Execution Vulnerability
Summary
| CVE | CVE-2020-1061 |
|---|---|
| State | PUBLISHED |
| Assigner | microsoft |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-05-21 23:15:12 UTC |
| Updated | 2026-08-19 17:17:11 UTC |
| Description | A remote code execution vulnerability exists in the way that the Microsoft Script Runtime handles objects in memory. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability through Internet Explorer and then convince a user to view the website. An attacker could also embed an ActiveX control marked "safe for initialization" in an application or Microsoft Office document that hosts the IE rendering engine. The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could exploit the vulnerability. The security update addresses the vulnerability by modifying how the Microsoft Script Runtime handles objects in memory. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from [email protected]
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.106180000 probability, percentile 0.954210000 (date 2026-08-19)
Problem Types: CWE-787 | Remote Code Execution
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Primary | 7.5 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.5 | HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C |
| 2.0 | [email protected] | Primary | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
MediumAuthentication
NoneConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:N/AC:M/Au:N/C:C/I:C/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Microsoft | Windows 10 | - | All | All | All |
| Operating System | Microsoft | Windows 10 | 1607 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1709 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1803 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1809 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1903 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1909 | All | All | All |
| Operating System | Microsoft | Windows 7 | - | sp1 | All | All |
| Operating System | Microsoft | Windows 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows Rt 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2008 | - | sp2 | All | All |
| Operating System | Microsoft | Windows Server 2008 | r2 | sp1 | All | All |
| Operating System | Microsoft | Windows Server 2008 | r2 | sp1 | All | All |
| Operating System | Microsoft | Windows Server 2012 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2012 | r2 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1803 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1903 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1909 | All | All | All |
| Operating System | Microsoft | Windows Server 2019 | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Microsoft | Windows 10 Version 1507 | affected 10.0.10240.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1607 | affected 10.0.14393.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1709 | affected 10.0.0 publication custom | ARM64-based Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1709 For 32-bit Systems | affected 10.0.0 publication custom | 32-bit Systems |
| CNA | Microsoft | Windows 10 Version 1803 | affected 10.0.0 publication custom | 32-bit Systems, ARM64-based Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1809 | affected 10.0.17763.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1809 | affected 10.0.0 publication custom | ARM64-based Systems |
| CNA | Microsoft | Windows 10 Version 1903 For 32-bit Systems | affected 10.0.0 publication custom | Not specified |
| CNA | Microsoft | Windows 10 Version 1903 For ARM64-based Systems | affected 10.0.0 publication custom | Not specified |
| CNA | Microsoft | Windows 10 Version 1903 For X64-based Systems | affected 10.0.0 publication custom | Not specified |
| CNA | Microsoft | Windows 10 Version 1909 | affected 10.0.0 publication custom | 32-bit Systems, ARM64-based Systems, x64-based Systems |
| CNA | Microsoft | Windows 7 | affected 6.1.0 publication custom | 32-bit Systems |
| CNA | Microsoft | Windows 7 Service Pack 1 | affected 6.1.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows 8.1 | affected 6.3.0 publication custom | 32-bit Systems, ARM64-based Systems, x64-based Systems |
| CNA | Microsoft | Windows Server 2008 R2 Service Pack 1 | affected 6.1.7601.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2008 R2 Service Pack 1 Server Core Installation | affected 6.1.7601.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2008 Service Pack 2 | affected 6.0.6003.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows Server 2008 Service Pack 2 Server Core Installation | affected 6.0.6003.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows Server 2012 | affected 6.2.9200.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2012 Server Core Installation | affected 6.2.9200.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2012 R2 | affected 6.3.9600.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2012 R2 Server Core Installation | affected 6.3.9600.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2016 | affected 10.0.14393.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2016 Server Core Installation | affected 10.0.14393.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2019 | affected 10.0.17763.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2019 Server Core Installation | affected 10.0.17763.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server Version 1803 Server Core Installation | affected 10.0.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server Version 1903 Server Core Installation | affected 10.0.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server Version 1909 Server Core Installation | affected 10.0.0 publication custom | x64-based Systems |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1061 | af854a3a-2127-422b-91ae-364da2661108 | portal.msrc.microsoft.com | Patch, Vendor Advisory |
| msrc.microsoft.com/update-guide/vulnerability/CVE-2020-1061 | [email protected] | msrc.microsoft.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.