Out-of-bounds write in Microsoft ChakraCore, Microsoft Edge
Priority LOW 28CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
ChakraCore and Microsoft Edge in Windows 10 1703 and 1709 allow information disclosure, due to how the scripting engine handles objects in memory, aka "Scripting Engine Information Disclosure Vulnerability". This CVE ID is unique from CVE-2018-0891.
Why it matters now
EPSS 0.05501 92nd percentileScored 2026-11-07
Fix Fixed Microsoft.ChakraCore (NuGet): 1.8.2
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, Microsoft Edge | Microsoft Windows 10 1703 and 1709. | — | No fix listed | CNA |
| — | Microsoft.ChakraCore (NuGet) | before 1.8.2 | 1.8.2 | Patch available | GHSA-xgcc-r2f3-rq6p |
- ChakraCore, Microsoft Edge VendorMicrosoft Affected Microsoft Windows 10 1703 and 1709. Fixed in — No fix listed CNA
- Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.8.2 Fixed in 1.8.2 Patch available GHSA-xgcc-r2f3-rq6p
Remediation
- Fix · GHSA-xgcc-r2f3-rq6p Microsoft.ChakraCore (NuGet) Fixed in 1.8.2 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0939
- 2026-10-03 Alias added: GHSA-xgcc-r2f3-rq6p
References
Other 4
More Microsoft Edge vulnerabilities
- 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
Sources
- CVE-2018-0939 · CVE Program
- CVE-2018-0939 · NVD
- FIRST EPSS
- GHSA-xgcc-r2f3-rq6p · GitHub Advisory Database · CC BY 4.0
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