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01 Record

CVE-2018-8276

A security feature bypass vulnerability exists in the Microsoft Chakra scripting engine that allows Control Flow Guard (CFG) to be bypassed, aka "Scripting Engine Security Feature Bypass

UnratedPUBLISHEDCNA: microsoft
CNA base scoreUnratedNo CNA CVSS vector
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02 Description

A security feature bypass vulnerability exists in the Microsoft Chakra scripting engine that allows Control Flow Guard (CFG) to be bypassed, aka "Scripting Engine Security Feature Bypass

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
5.77% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 92.9% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
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
2018-07-11 00:00Z8 YR AGO
Last updated
2024-08-05 06:46Z2 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
No CWE assigned
Data version
5.1
Document digest
719873e316887fa941dc41f3cb4d2e513dc4a8fae14a255a6e1cb73ab2a08198

05 Affected products

VendorProductVersionsPlatforms
MicrosoftMicrosoft EdgeWindows 10 Version 1703 for 32-bit Systems, Windows 10 Version 1703 for x64-based Systems, Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709 for x64-based Systems, Windows 10 Version 1803 for 32-bit Systems, Windows 10 Version 1803 for x64-based Systems—
MicrosoftChakraCoreChakraCore—

06 References