Is CVE-2021-37386 in the CISA KEV catalog?

No. CVE-2021-37386 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-37386?

CVE-2021-37386 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-37386?

CVE-2021-37386 has an EPSS score of 0.46% (36th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-37386?

Upgrade 423-41w\/ac firmware to 1.2.0 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-37386

HIGH

7.5

CVSS v3

NVD

Description

Furukawa Electric LatAm 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were discovered to contain an HTML injection vulnerability via the serial number update function.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

423-41w\/ac firmwareNVD

Affected:< 1.2.0Fixed in:1.2.0CVE-2021-37386derived from NVD

ld420-10r firmwareNVD

Affected:< 1.4.0Fixed in:1.4.0CVE-2021-37386derived from NVD

ld421-21w firmwareNVD

Affected:< 1.5.0Fixed in:1.5.0CVE-2021-37386derived from NVD

ld421-21wv firmwareNVD

Affected:< 1.5.0Fixed in:1.5.0CVE-2021-37386derived 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 RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityHigh

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

Exploit Intelligence

0.46%probability of exploitation in 30 days

36thpercentile

Low risk: more likely to be exploited than 36% of all known CVEs.

References

Third-Party Advisory1

gist.githubusercontent.com

Other references3

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

Embed a live status badge for CVE-2021-37386

Markdown

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HTML

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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.