CVE-2016-7201
Microsoft Edge Memory Corruption Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 18 April 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 80.00% probability · 100th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 18 November 2016
- CISA KEV
- Listed 28 March 2022 · due 18 April 2022
- Weakness
- CWE-843
- Affected
- microsoft/edge
- Source
- secure@microsoft.com
EPSS 80.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2016-7201
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
| EDB-ID | Title | Type | Published | Verified |
|---|---|---|---|---|
| EDB-40990source ↗ | Microsoft Edge (Windows 10) - 'chakra.dll' Information Leak / Type Confusion Remote Code Executionwindows · Brian Pak | remote | 5 January 2017 | no |
| EDB-40784source ↗ | Microsoft Edge - 'FillFromPrototypes' Type Confusionwindows · Google Security Research | dos | 18 November 2016 | yes |
References
- http://packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Information-Leak-Type-Confusion.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/94038Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037245Broken Link, Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129Patch, Vendor Advisory
- https://github.com/theori-io/chakra-2016-11Exploit, Third Party Advisory
- https://www.exploit-db.com/exploits/40784/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40990/Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Information-Leak-Type-Confusion.htmlThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/94038Broken Link, Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037245Broken Link, Third Party Advisory, VDB Entry
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129Patch, Vendor Advisory
- https://github.com/theori-io/chakra-2016-11Exploit, Third Party Advisory
- https://www.exploit-db.com/exploits/40784/Exploit, Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/40990/Exploit, Third Party Advisory, VDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7201US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.