CVE-2017-11767
ChakraCore allows an attacker to gain the same user rights as the current user, due to the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
ChakraCore allows an attacker to gain the same user rights as the current user, due to the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability".
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 9.51% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- microsoft/chakracore
- Source
- secure@microsoft.com
EPSS 9.5% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/100838Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039369Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11767Issue Tracking, Vendor Advisory
- http://www.securityfocus.com/bid/100838Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039369Third Party Advisory, VDB Entry
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11767Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.