CVE-2018-8355
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka…
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge. This CVE ID is unique from CVE-2018-8353, CVE-2018-8359, CVE-2018-8371, CVE-2018-8372, CVE-2018-8373, CVE-2018-8385, CVE-2018-8389, CVE-2018-8390.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Exploit-DB1 entry
- Microsoft Edge Chakra JIT - 'localeCompare' Type Confusion (Exploit-DB entry) (opens in a new tab)
EDB-ID 45432dos, windowspublished 18 Sept 2018Verified
References tagged exploit1 reference
- 45432 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
- 5 months later
· 5 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 67.9% · top 0.7% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
- Remote Code Execution
- CWE-787 (opens in a new tab)All about CWE-787 and its CVEs
Affected products
- affected ChakraCore
Microsoft · Internet Explorer 11
- affected Windows 10 for 32-bit Systems
- affected Windows 10 for x64-based Systems
- affected Windows 10 Version 1607 for 32-bit Systems
- affected Windows 10 Version 1607 for x64-based Systems
- affected Windows 10 Version 1703 for 32-bit Systems
- affected Windows 10 Version 1703 for x64-based Systems
- affected Windows 10 Version 1709 for 32-bit Systems
- affected Windows 10 Version 1709 for x64-based Systems
- affected Windows 10 Version 1803 for 32-bit Systems
- affected Windows 10 Version 1803 for x64-based Systems
- affected Windows 7 for 32-bit Systems Service Pack 1
- affected Windows 7 for x64-based Systems Service Pack 1
- affected Windows 8.1 for 32-bit systems
- affected Windows 8.1 for x64-based systems
- affected Windows RT 8.1
- affected Windows Server 2008 R2 for x64-based Systems Service Pack 1
- affected Windows Server 2012 R2
- affected Windows Server 2016
- affected Windows 10 for 32-bit Systems
- affected Windows 10 for x64-based Systems
- affected Windows 10 Version 1607 for 32-bit Systems
- affected Windows 10 Version 1607 for x64-based Systems
- affected Windows 10 Version 1703 for 32-bit Systems
- affected Windows 10 Version 1703 for x64-based Systems
- affected Windows 10 Version 1709 for 32-bit Systems
- affected Windows 10 Version 1709 for x64-based Systems
- affected Windows 10 Version 1803 for 32-bit Systems
- affected Windows 10 Version 1803 for x64-based Systems
- affected Windows Server 2016
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetMicrosoft.ChakraCoreGHSA-h8jq-5737-hpcf (opens in a new tab)
References (4)
- 1041457 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8355 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 104978 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 45432 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-4108 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-h8jq-5737-hpcf (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-8355)Record last updated .