CVE-2018-8139: microsoft chakracore Out-of-bounds Read
Vulnerability summary
CVE-2018-8139 is a high (CVSS 7.6) Out-of-bounds Read vulnerability in microsoft chakracore. EPSS estimates a 66.31% chance of exploitation in the next 30 days, higher than 99.2% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 09-05-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Microsoft Edge, aka "Scripting Engine Memory Corruption Vulnerability." This affects Microsoft Edge, ChakraCore. This CVE ID is unique from CVE-2018-0945, CVE-2018-0946, CVE-2018-0951, CVE-2018-0953, CVE-2018-0954, CVE-2018-0955, CVE-2018-1022, CVE-2018-8114, CVE-2018-8122, CVE-2018-8128, CVE-2018-8137.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · NugetEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
66.31%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
+5.08 pp
From 61.24% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMicrosoft Edge Chakra JIT - BoundFunction::NewInstance Out-of-Bounds Read
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Microsoft3 products
- chakracoreChakraCore | ≤ 1.8.3
- edgena
- microsoft edgeWindows 10 Version 1803 for 32-bit Systems | Windows 10 Version 1803 for x64-based Systems
NuGet1 product
- Microsoft.ChakraCore< 1.8.4
2 vendors · 4 products
References
10 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8139X Refsource CONFIRMPatchVendor AdvisoryWEB