CVE-2016-7240 — The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE

01What is this vulnerability?

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7242, and CVE-2016-7243.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2016-11-10T06:16:00.000Z
• Last modified: 2024-08-06T01:57:47.541Z

09References

• docs.microsoft.com — https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-12…
• www.exploit-db.com — https://www.exploit-db.com/exploits/40773/
• www.securityfocus.com — http://www.securityfocus.com/bid/94046
• www.securitytracker.com — http://www.securitytracker.com/id/1037245