HIGH SEVERITY

CVE-2018-8463

Edge vulnerability

CVSS
7.4
EPSS
15.4%
EPSS pct
96th
Exploited
No known
An elevation of privilege vulnerability exists in Microsoft Edge that could allow an attacker to escape from the AppContainer sandbox in the browser, aka "Microsoft Edge Elevation of Privilege Vulnerability." This affects Microsoft Edge. This CVE ID is unique from CVE-2018-8469.
Affected vendor
Microsoft
Affected product
Edge
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Published
2018-09-13

Risk analysis

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

Its EPSS score of 15.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2018-8463

  • Confirm whether Microsoft Edge is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-8463.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-8463

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