CVE-2018-8384
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 64.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8266, CVE-2018-8380, CVE-2018-8381.
- 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
- 64.11% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 18 September 2018
- CISA KEV
- Not listed
- Weakness
- CWE-843
- Affected
- microsoft/chakracore
- Source
- secure@microsoft.com
EPSS moved from 56.0% on 21 September 2026 to 64.1% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
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.
References
- http://www.securityfocus.com/bid/104981Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8384Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45431/Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/104981Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8384Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/45431/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.