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HIGH · CVSS 8.8 CISA Known Exploited Vulnerability

CVE-2016-7200

Microsoft Edge Memory Corruption Vulnerability

Microsoft Edge

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.

CVSS
8.8
HIGH
EPSS
82.8%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
10 Nov 2016
CWE-787

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 28 March 2022. US federal agencies were required to remediate it by 18 April 2022.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 82.8%, which is higher than 99.7% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Frequently asked questions

Is CVE-2016-7200 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2016-7200.

What does CVE-2016-7200 affect?

CVE-2016-7200 affects Microsoft Edge. 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.

How severe is CVE-2016-7200?

CVE-2016-7200 is rated HIGH with a CVSS base score of 8.8. EPSS puts the probability of exploitation in the next 30 days at 82.8%, higher than 99.7% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 18 April 2022.

How should organisations respond to CVE-2016-7200?

Apply the vendor patch for Microsoft Edge as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.