How severe is CVE-2021-41427?

CVE-2021-41427 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-2021-41427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41427?

CVE-2021-41427 affects Beeline Smart Box Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41427?

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

When was CVE-2021-41427 published?

CVE-2021-41427 was published on 2021-11-10 and last updated on 2026-06-17.

CVE-2021-41427

CVE-2021-41427 is a medium-severity vulnerability in Beeline Smart Box 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Beeline Smart Box Firmware
Published: 2021-11-10
Last modified: 2026-06-17

Description

Beeline Smart Box 2.0.38 is vulnerable to Cross Site Scripting (XSS) via the choose_mac parameter to setup.cgi.

Frequently asked questions

What is CVE-2021-41427?: Beeline Smart Box 2.0.38 is vulnerable to Cross Site Scripting (XSS) via the choose_mac parameter to setup.cgi.
How severe is CVE-2021-41427?: CVE-2021-41427 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-2021-41427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41427?: CVE-2021-41427 affects Beeline Smart Box Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41427 published?: CVE-2021-41427 was published on 2021-11-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:beeline:smart_box_firmware:2.0.38:*:*:*:*:*:*:*

More vulnerabilities in Beeline Smart Box Firmware

CVE-2021-41426 — High (CVSS 8.8): Beeline Smart box 2.0.38 is vulnerable to Cross Site Request Forgery (CSRF) via mgt_end_user.htm.
CVE-2020-12246 — High (CVSS 8.8): Beeline Smart Box 2.0.38 routers allow "Advanced settings > Other > Diagnostics" OS command injection via the Ping…

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