SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-8372

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge.

HIGH 7.5EPSS 26.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 26.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8353, CVE-2018-8355, CVE-2018-8359, CVE-2018-8371, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
26.28% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
microsoft/internet explorer · microsoft/edge · microsoft/chakracore
Source
secure@microsoft.com
EPSS trend
0%15%30%21 September 2026: 23.75%22 September 2026: 24.77%20 October 2026: 26.28%27 October 2026: 26.28%21 September 202627 October 2026

EPSS moved from 23.8% on 21 September 2026 to 26.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.