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Fencer Intel
high 7.5

CVE-2018-8266 in the critical feed json

ChakraCore RCE Vulnerability

published 8y ago modified 4mo ago also GHSA-5wrx-85mr-7hrg , EUVD-2022-2672

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
28.7%
EPSS 28.7% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

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 Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-8380, CVE-2018-8381, CVE-2018-8384.

Patch / fix

  • nuget Microsoft.ChakraCore 1.10.2

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Exploit prediction

28.68% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.ChakraCore
<1.10.2
1.10.2

Affected products

  • Microsoft Microsoft Edge
  • Microsoft ChakraCore

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.