TI-2018-05990 Aliases CVE-2018-8286 GHSA-vwqh-cmvp-6694

Out-of-bounds write in Microsoft Edge

MEDIUM 52CWE-787Published 2018-07-11 · Updated 2024-08-05

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 3.0 · 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, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8280, CVE-2018-8290, CVE-2018-8294.

Why it matters now

EPSS 0.20992 97th percentileScored 2026-11-07

Fix Fixed Microsoft.ChakraCore (NuGet): 1.10.1

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	Microsoft Edge	Windows 10 Version 1703 for 32-bit Systems; Windows 10 Version 1703 for x64-based Systems; Windows 10 Version 1709 for 32-bit Systems; Windows 10 Version 1709 for x64-based Systems; Windows 10 Version 1803 for 32-bit Systems; Windows 10 Version 1803 for x64-based Systems	—	No fix listed	CNA
Microsoft	ChakraCore	ChakraCore	—	No fix listed	CNA
—	Microsoft.ChakraCore (NuGet)	before 1.10.1	1.10.1	Patch available	GHSA-vwqh-cmvp-6694

Microsoft Edge VendorMicrosoft Affected Windows 10 Version 1703 for 32-bit Systems; Windows 10 Version 1703 for x64-based Systems; Windows 10 Version 1709 for 32-bit Systems; Windows 10 Version 1709 for x64-based Systems; Windows 10 Version 1803 for 32-bit Systems; Windows 10 Version 1803 for x64-based Systems Fixed in — No fix listed CNA
ChakraCore VendorMicrosoft Affected ChakraCore Fixed in — No fix listed CNA
Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.10.1 Fixed in 1.10.1 Patch available GHSA-vwqh-cmvp-6694

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:edge:-:::::::*	not specified by NVD	Vulnerable	Microsoft
cpe:2.3:o:microsoft:windows_10:1703:::::::*	1703	Running on	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:a:microsoft:chakracore::::::::	up to 1.10.0	Vulnerable	Microsoft

cpe:2.3:a:microsoft:edge:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* Versions 1703 Running on ·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:a:microsoft:chakracore:*:*:*:*:*:*:*:* Versions up to 1.10.0 Vulnerable ·Microsoft

Remediation

Fix · GHSA-vwqh-cmvp-6694 Microsoft.ChakraCore (NuGet) Fixed in 1.10.1 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2018-8286
2026-10-03 Alias added: GHSA-vwqh-cmvp-6694

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8286

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2018-8286

Other 5

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

See all 254 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences