CVE-2019-0639 — A remote code execution vulnerability exists in the way that the ChakraCore scri

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0609, CVE-2019-0680, CVE-2019-0769, CVE-2019-0770, CVE-201

01What is this vulnerability?

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0609, CVE-2019-0680, CVE-2019-0769, CVE-2019-0770, CVE-2019-0771, CVE-2019-0773, CVE-2019-0783.

02Affected products

Vendor	Product	Versions
Microsoft	Microsoft Edge	Windows 10 Version 1803 for 32-bit Systems, Windows 10 Version 1803 for x64-based Systems, Windows 10 Version 1803 for ARM64-based Systems, Windows 10 Version 1809 for 32-bit Systems, Windows 10 Version 1809 for x64-based Systems
Microsoft	ChakraCore	Windows 10 Version 1809 for ARM64-based Systems, Windows Server 2019

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2019-04-08T22:40:41.000Z
• Last modified: 2024-08-04T17:51:27.063Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0639
• www.zerodayinitiative.com — https://www.zerodayinitiative.com/advisories/ZDI-20-122/