CVE-2018-8298
unknown
KEV
CVSS v3
—
CVSS v4 NEW
—
VIR risk
2.5
Description
The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
CISA KEV
- Vendor
- ChakraCore
- Product
- ChakraCore scripting engine
- Due date
- 2022-03-17
Predictions
Exploit likelihood
99%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Microsoft Edge Chakra JIT - InitializeNumberFormat and InitializeDateTimeFormat Type Confusion
Source code queued for fetch — refresh in a moment.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | Microsoft.ChakraCore | <1.10.1 | 1.10.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2018-8298
- https://github.com/chakra-core/ChakraCore/pull/5444
- https://github.com/chakra-core/ChakraCore/commit/cb9957e2763c36dbd12afa5c9261465159e16c86
- https://github.com/chakra-core/ChakraCore
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298
- 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
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.