TI-2018-00943 Aliases CVE-2018-1019 GHSA-prhh-h793-h32r

Out-of-bounds write in Microsoft Edge

MEDIUM 49CWE-787Published 2018-04-12 · 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-2018-0979, CVE-2018-0980, CVE-2018-0990, CVE-2018-0993, CVE-2018-0994, CVE-2018-0995.

Why it matters now

EPSS 0.1543 96th percentileScored 2026-11-07

Fix Fixed Microsoft.ChakraCore (NuGet): 1.8.3

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 1709 for 32-bit Systems; Windows 10 Version 1709 for x64-based Systems	—	No fix listed	CNA
Microsoft	ChakraCore	ChakraCore	—	No fix listed	CNA
—	Microsoft.ChakraCore (NuGet)	before 1.8.3	1.8.3	Patch available	GHSA-prhh-h793-h32r

Microsoft Edge VendorMicrosoft Affected Windows 10 Version 1709 for 32-bit Systems; Windows 10 Version 1709 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 1.8.3 Fixed in 1.8.3 Patch available GHSA-prhh-h793-h32r

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:edge::::::::	all versions	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:a:microsoft:edge:*:*:*:*:*:*:*:* Versions all versions 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

Remediation

Fix · GHSA-prhh-h793-h32r Microsoft.ChakraCore (NuGet) Fixed in 1.8.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2018-1019
2026-10-03 Alias added: GHSA-prhh-h793-h32r

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-1019

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2018-1019

Other 4

TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2022-03781 Out-of-bounds write in Google Chrome KEVCVSS 3.1CRITICAL 9.6
TI-2015-00277 Use-after-free vulnerability in Adobe Flash Player before 13.0.0.269 and 14.x through… KEVCVSS 3.1CRITICAL 9.8
TI-2015-00275 Unspecified vulnerability in Adobe Flash Player through 13.0.0.262 and 14.x, 15.x, and… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2020-12621 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 761 →

Sources

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