Is CVE-2018-21122 in the CISA KEV catalog?

No. CVE-2018-21122 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-21122?

CVE-2018-21122 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2018-21122?

CVE-2018-21122 has an EPSS score of 0.51% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-21122?

Upgrade gs110emx firmware to 1.0.0.9 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-21122

MEDIUM

6.5

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.

CWE-20Improper Input Validation

How to fix

Remediation Available

gs110emx firmwareNVD

Affected:< 1.0.0.9Fixed in:1.0.0.9CVE-2018-21122derived from NVD

gs810emx firmwareNVD

Affected:< 1.0.0.5Fixed in:1.0.0.5CVE-2018-21122derived from NVD

xs512em firmwareNVD

Affected:< 1.0.0.6Fixed in:1.0.0.6CVE-2018-21122derived from NVD

xs724em firmwareNVD

Affected:< 1.0.0.6Fixed in:1.0.0.6CVE-2018-21122derived 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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.51%probability of exploitation in 30 days

40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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.