CVE-2017-11861
HighPublic exploitMicrosoft Edge in Windows 10 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 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 Nov 15, 2017 · Updated May 12, 2026
Key Facts
Patch immediately- CVE-2017-11861 is a high-severity vulnerability (CVSS 7.5 v3) 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 64% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
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)
64%
Higher than 99.2% 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
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Description
Microsoft Edge in Windows 10 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 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-2017-11836, CVE-2017-11837, CVE-2017-11838, CVE-2017-11839, CVE-2017-11840, CVE-2017-11841, CVE-2017-11843, CVE-2017-11846, CVE-2017-11858, CVE-2017-11859, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11870, CVE-2017-11871, and CVE-2017-11873.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ChakracoreMicrosoft | See advisory | n/a |
| EdgeMicrosoft | See advisory | n/a |
| ChakraCore, Microsoft Edge | >= Windows 10 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709. | n/a |
Timeline
Publicly disclosed
Nov 15, 2017
Last updated
May 12, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisory101723
- advisory1039780
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11861
- exploitExploitDB-43153
- exploit43153
FAQ
Common Questions.
Microsoft Edge in Windows 10 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709 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 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709.. 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.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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