Buffer overflow in Microsoft Chakracore
CVE-2017-11840
ChakraCore and Microsoft Edge in Windows 10 Gold, 1511, 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 obj…
Vulnerability class: Buffer Overflow
EPSS: 0.804 (99.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Chakracore
- Microsoft Edge
- Microsoft Windows_10 — versions 1511, 1607, 1703
- Microsoft Windows_server_2016 — versions 1709
- Microsoft Corporation Chakracore, Edge — versions Windows 10 Gold, 1511, 1607, 1703, 1709, Windows Server 2016 and Windows Server, version 1709.
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
Frequently asked questions
- What is CVE-2017-11840?
- CVE-2017-11840 is a high-severity vulnerability in Microsoft Chakracore, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-11-15.
- How severe is CVE-2017-11840?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-11840 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.