CVE-2017-8602

Edge vulnerability

CVSS

6.5

EPSS

5.3%

EPSS pct

92th

Exploited

No known

Microsoft browsers on Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow a spoofing vulnerability in the way they parse HTTP content, aka "Microsoft Browser Spoofing Vulnerability."

Affected vendor

Microsoft

Affected product

Edge

CVSS vector

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

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2017-07-11

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 5.3% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2017-8602

Confirm whether Microsoft Edge is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-8602.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-8602

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-8602 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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