CVE-2018-8291: ChakraCore RCE Vulnerability
7.5
CVSS Score
3.0
Basic Information
CVE ID
GHSA ID
EPSS Score
0.99228%
CWE
Published
5/13/2022
Updated
10/6/2023
KEV Status
No
Technology
C#
Technical Details
CVSS Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
Microsoft.ChakraCore | nuget | < 1.10.1 | 1.10.1 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The GitHub patch explicitly adds missing property copies in DictionaryPropertyDescriptor::CopyFrom
. The CWE-843 (Type Confusion) and exploit description both align with incomplete descriptor copies causing memory corruption. The commit message directly attributes CVE-2018-8291
to this function
, and the exploit PoC demonstrates how missing IsShadowed
handling leads to type confusion.