The scripting engines in Microsoft Internet Explorer 9 through 11 and Microsoft Edge allow 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," as demonstrated by the Chakra JavaScript engine, a different vulnerability than CVE-2016-7200, CVE-2016-7201, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.
CVE-2016-7202
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 76.9%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High exploitation likelihood — EPSS 73%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 99.4%
- KEV
- Not listed
Published
November 10, 2016
Last Modified
May 6, 2026
References (14)
- secure@microsofthttp://www.securityfocus.com/bid/94042
- secure@microsofthttp://www.securitytracker.com/id/1037245
- secure@microsofthttp://www.zerodayinitiative.com/advisories/ZDI-16-593
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-144
- secure@microsofthttps://www.exploit-db.com/exploits/40786/
- secure@microsofthttps://www.exploit-db.com/exploits/40793/
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94042
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037245
- af854a3a-2127-422b-91ae-364da2661108http://www.zerodayinitiative.com/advisories/ZDI-16-593
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-144
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/40786/
- af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/40793/
Affected Packages
(1 across 1 ecosystem)
NuGet(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Microsoft.ChakraCore | 1.2.0, 1.2.1 | 1.2.2 | — |
Data Freshness Timeline
(refreshed 1× in last 7d / 20× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-09 19:06 UTCEPSS rescore
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- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-23 00:10 UTCEG score recompute
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 18:00 UTCEG score recompute
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-40793✓ verifiedFirst seen Nov 21, 2016
Microsoft Edge Scripting Engine - Memory Corruption (MS16-129)
Open source ↗ - Exploit-DBEDB-40786✓ verifiedFirst seen Nov 18, 2016
Microsoft Edge - 'Array.reverse' Overflow
Open source ↗
Frequently asked(5)
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Dependency Blast Radius
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