Buffer overflow in Microsoft Chakracore
CVE-2018-8391
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8354, CVE-2018-8456, CVE-2018-8457, CVE-2018-8459.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.113 (95.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.110 · newest: 0.113 · change: +0.003
Affected products
- Microsoft Chakracore — versions ChakraCore
Weakness classification (CWE)
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8391 (Patch, Vendor Advisory)
- www.securityfocus.com/bid/105231 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-8391?
- CVE-2018-8391 is a high-severity vulnerability in Microsoft Chakracore, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-09-13.
- How severe is CVE-2018-8391?
- High severity. CVSS v3 base score is 7.5 out of 10.