Actively exploited · Published Nov 10, 2016 · Assigned by microsoft
CVE-2016-7200
High 8.8 Exploited
In plain English
A high-severity out-of-bounds write in Edge from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 28, 2022). The chance it is exploited in the next 30 days is estimated at 82.8% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Apr 18, 2022.
Official 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-2016-7201, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| NuGet | microsoft.chakracore | 1.2.2 | GHSA-5whg-j5fv-xcm2 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- MS16-129 vendor-advisory, x_refsource_MS
- http://packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Information-Leak-Type-Confusion.html x_refsource_MISC
- 40785 exploit, x_refsource_EXPLOIT-DB
- https://github.com/theori-io/chakra-2016-11 x_refsource_MISC
- 93968 vdb-entry, x_refsource_BID
- 40990 exploit, x_refsource_EXPLOIT-DB
- 1037245 vdb-entry, x_refsource_SECTRACK
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7200 government-resource