CVE-2019-1427 — A remote code execution vulnerability exists in the way that the scripting engin

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge (HTML-based), aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1428, CVE-2019-1429.

01What is this vulnerability?

A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge (HTML-based), aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1426, CVE-2019-1428, CVE-2019-1429.

02Affected products

Vendor	Product	Versions
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1809 for 32-bit Systems — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1809 for x64-based Systems — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1809 for ARM64-based Systems — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows Server 2019 — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1903 for 32-bit Systems — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1903 for x64-based Systems — unspecified
Microsoft	Microsoft Edge (EdgeHTML	based) on Windows 10 Version 1903 for ARM64-based Systems — unspecified
Microsoft	ChakraCore	unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

08Timeline

• Published: 2019-11-12T18:53:09.000Z
• Last modified: 2024-08-04T18:20:27.437Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1427