CVE-2017-11874

Chakracore vulnerability

CVSS

3.1

EPSS

4.0%

EPSS pct

89th

Exploited

No known

Microsoft Edge in Microsoft Windows 10 1703, 1709, Windows Server, version 1709, and ChakraCore allows an attacker to bypass Control Flow Guard (CFG) to run arbitrary code on a target system, due to how Microsoft Edge handles accessing memory in code compiled by the Edge Just-In-Time (JIT) compiler, aka "Microsoft Edge Security Feature Bypass Vulnerability". This CVE ID is unique from CVE-2017-11863 and CVE-2017-11872.

Affected vendor

Microsoft

Affected product

Chakracore

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N

Published

2017-11-15

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, user interaction. Successful exploitation leads to low impact to integrity.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2017-11874

Confirm whether Microsoft Chakracore is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-11874.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-11874

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