Type confusion in Microsoft ChakraCore
Priority CRITICAL 92Exploited in the wildCWE-843Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-843 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation Active In CISA KEV since 2022-03-03CISA due date 2022-03-17
EPSS 0.74694 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Microsoft.ChakraCore (NuGet): 1.10.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Active
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | ChakraCore | ChakraCore | — | No fix listed | CNA |
| — | Microsoft.ChakraCore (NuGet) | before 1.10.1 | 1.10.1 | Patch available | GHSA-wgw2-wwq8-c7wf |
- ChakraCore VendorMicrosoft Affected ChakraCore Fixed in — No fix listed CNA
- Microsoft.ChakraCore (NuGet) Vendor— Affected before 1.10.1 Fixed in 1.10.1 Patch available GHSA-wgw2-wwq8-c7wf
Remediation
- Fix · GHSA-wgw2-wwq8-c7wf Microsoft.ChakraCore (NuGet) Fixed in 1.10.1 Advisory →
Timeline
- 2022-03-03 Added to CISA KEV
- 2026-10-02 Threatist record created from CVE-2018-8298
- 2026-10-03 Alias added: GHSA-wgw2-wwq8-c7wf
References
Exploit 1
Other 6
- https://github.com/chakra-core/ChakraCore/pull/5444
- https://github.com/chakra-core/ChakraCore/commit/cb9957e2763c36dbd12afa5c9261465159e16c86
- https://github.com/chakra-core/ChakraCore
- https://web.archive.org/web/20210124183835/http://www.securityfocus.com/bid/104639
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298
- https://www.exploit-db.com/exploits/45217
More Microsoft Chakracore vulnerabilities
- TI-2020-00848 Microsoft Browser Memory Corruption Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2019-00333 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2019-00359 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00721 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00720 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
- TI-2018-00714 Out-of-bounds write in Microsoft Edge CVSS 3.0HIGH 7.5
Sources
- CVE-2018-8298 · CVE Program
- CVE-2018-8298 · NVD
- CISA Known Exploited Vulnerabilities
- FIRST EPSS
- GHSA-wgw2-wwq8-c7wf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences