What is CVE-2016-7200?

CVE-2016-7200 is a high-severity vulnerability in Microsoft Edge, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2016-11-10.

How severe is CVE-2016-7200?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2016-7200 known to be exploited?

Yes. CVE-2016-7200 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 25 public proof-of-concept repositories are indexed.

Buffer overflow in Microsoft Edge

CVE-2016-7200

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-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

Vulnerability class: Buffer Overflow

Published 2016-11-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.828 (99.7th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.829 · newest: 0.828 · change: -0.001

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-28. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-18.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129 (vendor-advisory, Patch, Vendor Advisory)
packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Information-Leak… (VDB Entry, Third Party Advisory)
www.exploit-db.com/exploits/40785/ (Exploit, VDB Entry, Third Party Advisory, exploit)
github.com/theori-io/chakra-2016-11 (Exploit, Third Party Advisory)
www.securityfocus.com/bid/93968 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
www.exploit-db.com/exploits/40990/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.securitytracker.com/id/1037245 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2016-7200?: CVE-2016-7200 is a high-severity vulnerability in Microsoft Edge, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2016-11-10.
How severe is CVE-2016-7200?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2016-7200 known to be exploited?: Yes. CVE-2016-7200 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-28), indicating it is being actively exploited. 25 public proof-of-concept repositories are indexed.