Is CVE-2017-18866 in the CISA KEV catalog?

No. CVE-2017-18866 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-18866?

CVE-2017-18866 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2017-18866?

CVE-2017-18866 has an EPSS score of 0.65% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-18866?

Upgrade 6r7500 firmware to 1.0.0.110 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2017-18866

MEDIUM

6.1

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by stored XSS. This affects R9000 before 1.0.2.40, R6100 before 1.0.1.1, 6R7500 before 1.0.0.110, R7500v2 before 1.0.3.20, R7800 before 1.0.2.36, WNDR4300v2 before 1.0.0.48, and WNR2000v5 before 1.0.0.58.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

6r7500 firmwareNVD

Affected:< 1.0.0.110Fixed in:1.0.0.110CVE-2017-18866derived from NVD

r6100 firmwareNVD

Affected:< 1.0.1.1Fixed in:1.0.1.1CVE-2017-18866derived from NVD

r7500 firmwareNVD

Affected:< 1.0.3.20Fixed in:1.0.3.20CVE-2017-18866derived from NVD

r7800 firmwareNVD

Affected:< 1.0.2.36Fixed in:1.0.2.36CVE-2017-18866derived from NVD

r9000 firmwareNVD

Affected:< 1.0.2.40Fixed in:1.0.2.40CVE-2017-18866derived from NVD

wndr4300 firmwareNVD

Affected:< 1.0.0.48Fixed in:1.0.0.48CVE-2017-18866derived from NVD

wnr2000 firmwareNVD

Affected:< 1.0.0.58Fixed in:1.0.0.58CVE-2017-18866derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.65%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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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 2024-11-21.