01 Record

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.

UnratedPUBLISHEDCNA: microsoft

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 11.27% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 95.8% of scored records. A rank, not a probability.
NVD base score: 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-09-13 00:00Z8 YR AGO

Last updated

2024-08-05 06:54Z2 YR AGO

Reserved

2018-03-14

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

ec61e84d916fc0d5024f5da3a3dff2efcff4ddc905a23d6727ba34e8c89eaa53

05 Affected products

VendorProductVersionsPlatforms

MicrosoftChakraCoreChakraCore—

06 References

portal.msrc.microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8391x_refsource_CONFIRM
www.securityfocus.com105231http://www.securityfocus.com/bid/105231vdb-entryx_refsource_BID