CVE-2018-8283: microsoft chakracore Out-of-bounds Write
CVSS: 7.6v2.0HighModified
AliasesGHSA-ch84-pxpj-7hhm
Published 11-07-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-8283 is a high (CVSS 7.6) Out-of-bounds Write vulnerability in microsoft chakracore. EPSS estimates a 15.22% chance of exploitation in the next 30 days, higher than 96.7% of scored vulnerabilities.
CVSS score
7.6/10
010
High · v2.0 (NVD)EPSS score
15.22%
0%100%
Medium · +0.70 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-07-2018PublishedVulnerability 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. This CVE ID is unique from CVE-2018-8242, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296, CVE-2018-8298.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 2 agree
- OSV · NugetEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
High 7.6Preferred score · NVD (NIST)
AV:N/AC:H/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
15.22%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
+0.70 pp
From 14.52% on 21-09-2026
21-09-202621-10-2026
EPSS score15.22%
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 | < 1.10.1
NuGet1 product
- Microsoft.ChakraCore< 1.10.1
2 vendors · 2 products
References
6 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8283X Refsource CONFIRMPatchVendor AdvisoryWEB