CVE-2017-11870
ChakraCore and Microsoft Edge in Windows 10 1703, 1709, 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…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 59.6%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
ChakraCore and Microsoft Edge in Windows 10 1703, 1709, 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-2017-11861, CVE-2017-11862, CVE-2017-11866, CVE-2017-11869, CVE-2017-11871, and CVE-2017-11873.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 59.64% probability · 99th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 27 November 2017
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- microsoft/chakracore · microsoft/edge
- Source
- secure@microsoft.com
EPSS moved from 45.9% on 21 September 2026 to 59.6% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.securityfocus.com/bid/101731Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039780Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11870Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/43182/Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/101731Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039780Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11870Patch, Vendor Advisory
- https://www.exploit-db.com/exploits/43182/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.