Buffer overflow in Microsoft Chakracore
CVE-2018-0993
A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-0979, CVE-2018-0980, CVE-2018-0990, CVE-2018-0994, CVE-2018-0995, CVE-2018-1019.
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: 0.154 (96.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.157 · newest: 0.154 · change: -0.003
Affected products
- Microsoft Chakracore — versions ChakraCore
- Microsoft Edge
- Microsoft Edge — versions Windows 10 Version 1703 for x64-based Systems, Windows 10 Version 1511 for 32-bit Systems, Windows 10 for x64-based Systems
- Microsoft Windows 10 — versions 1511, 1607, 1703
- Microsoft Windows Server 2016
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/103627 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1040650 (VDB Entry, Third Party Advisory, vdb-entry)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0993 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2018-0993?
- CVE-2018-0993 is a high-severity vulnerability in Microsoft Chakracore, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2018-04-12.
- How severe is CVE-2018-0993?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-0993 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.