Is CVE-2024-21798 in the CISA KEV catalog?

No. CVE-2024-21798 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-21798?

CVE-2024-21798 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2024-21798?

CVE-2024-21798 has an EPSS score of 1.29% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-21798?

Upgrade wmc-x1800gst-b firmware to 1.42 or later. Fixes are available for 10 affected products.

CVE & CISA-KEV Catalog

CVE-2024-21798

MEDIUM

4.8

CVSS v3

NVD

Description

ELECOM wireless LAN routers contain a cross-site scripting vulnerability. Assume that a malicious administrative user configures the affected product with specially crafted content. When another administrative user logs in and operates the product, an arbitrary script may be executed on the web browser. Note that WMC-X1800GST-B is also included in e-Mesh Starter Kit "WMC-2LX-B".

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

wmc-x1800gst-b firmwareNVD

Affected:< 1.42Fixed in:1.42CVE-2024-21798derived from NVD

wrc-1167gs2-b firmwareNVD

Affected:< 1.73Fixed in:1.73CVE-2024-21798derived from NVD

wrc-1167gs2h-b firmwareNVD

Affected:< 1.73Fixed in:1.73CVE-2024-21798derived from NVD

wrc-1167gst2 firmwareNVD

Affected:< 1.34Fixed in:1.34CVE-2024-21798derived from NVD

wrc-2533gs2-b firmwareNVD

Affected:< 1.68Fixed in:1.68CVE-2024-21798derived from NVD

wrc-2533gs2-w firmwareNVD

Affected:< 1.68Fixed in:1.68CVE-2024-21798derived from NVD

wrc-2533gs2v-b firmwareNVD

Affected:< 1.68Fixed in:1.68CVE-2024-21798derived from NVD

wrc-2533gst2 firmwareNVD

Affected:< 1.31Fixed in:1.31CVE-2024-21798derived from NVD

wrc-g01-w firmwareNVD

Affected:< 1.26Fixed in:1.26CVE-2024-21798derived from NVD

wrc-x3200gst3-b firmwareNVD

Affected:< 1.27Fixed in:1.27CVE-2024-21798derived 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

AvailabilityNone

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

Exploit Intelligence

1.29%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Vendor Advisory1

elecom.co.jp

Third-Party Advisory1

jvn.jp

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-2024-21798

Markdown

[![CVE-2024-21798](https://tridentstack.com/cve/badge/CVE-2024-21798.svg)](https://tridentstack.com/cve/CVE-2024-21798)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-21798"><img src="https://tridentstack.com/cve/badge/CVE-2024-21798.svg" alt="CVE-2024-21798"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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 2025-02-14.