Buffer overflow in Microsoft Chakracore
CVE-2018-8355
A remote code execution vulnerability exists in the way the scripting engine handles objects in memory in Microsoft browsers, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft…
Vulnerability class: Buffer Overflow
EPSS: 0.682 (99.3th 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 — versions ChakraCore
- Microsoft Edge
- Microsoft Internet_explorer — versions 11
- Microsoft Internet Explorer 11 — versions Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
- Microsoft Edge — versions Windows 10 for 32-bit Systems, Windows 10 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
- Microsoft Windows_10 — versions 1607, 1703, 1709
- Microsoft Windows_7
- Microsoft Windows_8.1
- Microsoft Windows_rt_8.1
- Microsoft Windows_server_2008 — versions r2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 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, vdb-entry, x_refsource_BID)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
Frequently asked questions
- What is CVE-2018-8355?
- CVE-2018-8355 is a high-severity vulnerability in Microsoft Chakracore, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-08-15.
- How severe is CVE-2018-8355?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-8355 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.