CVE-2018-8298
HighExploitedPublic exploitChakraCore RCE Vulnerability
Published May 13, 2022 · Updated Aug 27, 2026 · Also known as GHSA-wgw2-wwq8-c7wf
Key Facts
Patch immediately- CVE-2018-8298 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting ChakraCore (Microsoft), Microsoft.ChakraCore (nuget).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 3, 2022. Public exploit code is available.
- EPSS estimates a 75% probability of exploitation in the next 30 days.
- Fixed versions are available, including ChakraCore 1.10.1, Microsoft.ChakraCore 1.10.1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
75%
Higher than 99.5% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-8298 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 3, 2022 | Mar 17, 2022 | Not reported |
| Industry KEV feed | Mar 3, 2022 | Mar 17, 2022 | Not reported |
| CIRCL KEV | Mar 3, 2022 | Mar 17, 2022 | Not reported |
| ENISA EUVD | Mar 3, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChakraCoreMicrosoft | >= ChakraCore | 1.10.1 |
| Microsoft.ChakraCorenuget | See advisory | 1.10.1 |
Patched Releases
ChakraCore
1.10.1
Microsoft.ChakraCore
1.10.1
Timeline
Added to CISA KEV
Mar 3, 2022
Added to Industry KEV feed
Mar 3, 2022
Added to CIRCL KEV
Mar 3, 2022
Added to ENISA EUVD
Mar 3, 2022
Publicly disclosed
May 13, 2022
Last updated
Aug 27, 2026
Weakness Type
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
References
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2018-8298
- advisory104639
- exploitVulnCheck exploitation report
- exploit45217
FAQ
Common Questions.
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.
Affected: ChakraCore (Microsoft) versions >= ChakraCore; Microsoft.ChakraCore (nuget). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 3, 2022.
Yes. It was added on Mar 3, 2022 with a federal remediation due date of Mar 17, 2022.
Public exploit code is available.
Fixed versions are available, including ChakraCore 1.10.1, Microsoft.ChakraCore 1.10.1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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