How severe is CVE-2021-20644?

CVE-2021-20644 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-20644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20644?

CVE-2021-20644 affects Elecom Wrc-1467ghbk-a Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20644 published?

CVE-2021-20644 was published on 2021-02-12 and last updated on 2026-06-17.

CVE-2021-20644

CVE-2021-20644 is a medium-severity vulnerability in Elecom Wrc-1467ghbk-a Firmware with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Elecom Wrc-1467ghbk-a Firmware
Published: 2021-02-12
Last modified: 2026-06-17

Description

ELECOM WRC-1467GHBK-A allows arbitrary scripts to be executed on the user's web browser by displaying a specially crafted SSID on the web setup page.

Frequently asked questions

What is CVE-2021-20644?: ELECOM WRC-1467GHBK-A allows arbitrary scripts to be executed on the user's web browser by displaying a specially crafted SSID on the web setup page.
How severe is CVE-2021-20644?: CVE-2021-20644 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-20644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20644?: CVE-2021-20644 affects Elecom Wrc-1467ghbk-a Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20644 published?: CVE-2021-20644 was published on 2021-02-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:elecom:wrc-1467ghbk-a_firmware:-:*:*:*:*:*:*:*

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