CVE-2017-11918
HighPublic exploitChakraCore and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption…
Published Dec 12, 2017 · Updated Aug 27, 2026
Key Facts
Patch immediately- CVE-2017-11918 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Chakracore (Microsoft), Edge (Microsoft), ChakraCore, Microsoft Edge.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 63% probability of exploitation in the next 30 days.
- Fixed versions are available, including Chakracore 1.7.5.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
63%
Higher than 99.1% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-11918 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
ChakraCore and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11886, CVE-2017-11889, CVE-2017-11890, CVE-2017-11893, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, CVE-2017-11905, CVE-2017-11905, CVE-2017-11907, CVE-2017-11908, CVE-2017-11909, CVE-2017-11910, CVE-2017-11911, CVE-2017-11912, CVE-2017-11913, CVE-2017-11914, CVE-2017-11916, and CVE-2017-11930.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChakracoreMicrosoft | See advisory | 1.7.5 |
| EdgeMicrosoft | See advisory | n/a |
| ChakraCore, Microsoft Edge | >= Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016. | n/a |
Patched Releases
Chakracore
1.7.5
Timeline
Publicly disclosed
Dec 12, 2017
Last updated
Aug 27, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory102089
- advisory1039990
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11918
- exploitExploitDB-43469
- exploit43469
FAQ
Common Questions.
ChakraCore and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
Affected: Chakracore (Microsoft); Edge (Microsoft); ChakraCore, Microsoft Edge versions >= Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016.. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Chakracore 1.7.5.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
Is CVE-2017-11918 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo