Is CVE-2017-8530 in the CISA KEV catalog?

No. CVE-2017-8530 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-8530?

CVE-2017-8530 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2017-8530?

CVE-2017-8530 has an EPSS score of 1.65% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2017-8530?

No published fix for CVE-2017-8530 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2017-8530

MEDIUMEPSS 74th pctl

5.4

CVSS v3

NVD

Description

Microsoft Edge in Microsoft Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allows an attacker to trick a user into loading a page with malicious content when Microsoft Edge does not properly enforce same-origin policies, aka "Microsoft Edge Security Feature Bypass Vulnerability". This CVE ID is unique from CVE-2017-8523 and CVE-2017-8555.

CWE-346

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

1.65%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.