CVE-2016-7201 — Microsoft Edge Memory Corruption 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

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-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

02Affected products

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

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-03-28. Ransomware use: Unknown.

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:

Open in Sigma generator →

07Related CVEs

08Timeline

• Published: 2016-11-10T06:16:00.000Z
• Last modified: 2025-10-21T23:55:48.707Z
• Added to CISA KEV: 2022-03-28
• BOD 22-01 due: 2022-04-18

09References

• docs.microsoft.com — https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-12…
• packetstormsecurity.com — http://packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Informatio…
• github.com — https://github.com/theori-io/chakra-2016-11
• www.securityfocus.com — http://www.securityfocus.com/bid/94038
• www.exploit-db.com — https://www.exploit-db.com/exploits/40784/
• www.exploit-db.com — https://www.exploit-db.com/exploits/40990/
• www.securitytracker.com — http://www.securitytracker.com/id/1037245