Out-of-bounds write in Microsoft ChakraCore
Priority MEDIUM 43CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-787 and the CVSS impact.
Summary
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge (HTML-based)L, aka 'Chakra Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2020-0812.
Why it matters now
EPSS 0.07713 94th percentileScored 2026-11-07
Fix Fixed Microsoft.ChakraCore (NuGet): 1.11.17
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | ChakraCore | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows Server 2019 | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems | all versions | — | No fix listed | CNA |
| Microsoft | Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems | all versions | — | No fix listed | CNA |
| — | Microsoft.ChakraCore (NuGet) | before 1.11.17 | 1.11.17 | Patch available | GHSA-pg99-mp4c-75g6 |
- ChakraCore VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1803 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1809 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows Server 2019 VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1909 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1709 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for 32-bit Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for x64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft Edge (EdgeHTML-based) on Windows 10 Version 1903 for ARM64-based Systems VendorMicrosoft Affected all versions Fixed in — No fix listed CNA
- Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.11.17 Fixed in 1.11.17 Patch available GHSA-pg99-mp4c-75g6
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:chakracore:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | 1803 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* | 1903 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* | 1909 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:microsoft:chakracore:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* Versions 1803 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* Versions 1903 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* Versions 1909 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · GHSA-pg99-mp4c-75g6 Microsoft.ChakraCore (NuGet) Fixed in 1.11.17 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-0811
- 2026-10-03 Alias added: GHSA-pg99-mp4c-75g6
References
More Microsoft Chakracore vulnerabilities
- TI-2020-00848 Microsoft Browser Memory Corruption Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2018-06000 Type confusion in Microsoft ChakraCore KEVCVSS 3.1HIGH 7.5
- TI-2019-00333 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2019-00359 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00721 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00720 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
Sources
- CVE-2020-0811 · CVE Program
- CVE-2020-0811 · NVD
- FIRST EPSS
- GHSA-pg99-mp4c-75g6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences