SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-8500

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore.

CRITICAL 9.8EPSS 18.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 18.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore.

CVSS 3.0
9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
18.47% probability · 97th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-787
Affected
microsoft/chakracore
Source
secure@microsoft.com
EPSS trend
0%10%20%21 September 2026: 17.23%22 September 2026: 18.47%27 October 2026: 18.47%21 September 202627 October 2026

EPSS moved from 17.2% on 21 September 2026 to 18.5% 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.