CVE-2018-8500: microsoft chakracore Out-of-bounds Write
CVSS: 10.0v2.0HighModified
AliasesGHSA-fw42-4mq4-4qpq
Published 10-10-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-8500 is a high (CVSS 10.0) Out-of-bounds Write vulnerability in microsoft chakracore. EPSS estimates a 18.47% chance of exploitation in the next 30 days, higher than 97.2% of scored vulnerabilities.
CVSS score
10.0/10
010
High · v2.0 (NVD)EPSS score
18.47%
0%100%
Medium · +1.24 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-10-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · NugetEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 10.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
18.47%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
+1.24 pp
From 17.23% on 21-09-2026
21-09-202621-10-2026
EPSS score18.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microsoft1 product
- chakracoreChakraCore | na
NuGet1 product
- Microsoft.ChakraCore< 1.11.2
2 vendors · 2 products
References
7 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8500X Refsource CONFIRMPatchVendor AdvisoryWEB