How severe is CVE-2020-21884?

CVE-2020-21884 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-21884 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-21884?

CVE-2020-21884 primarily affects Indionetworks Unibox U50 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-21884?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-21884 published?

CVE-2020-21884 was published on 2021-04-09 and last updated on 2026-07-05.

CVE-2020-21884

CVE-2020-21884 is a high-severity vulnerability in Indionetworks Unibox U50 Firmware with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.3
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Indionetworks Unibox U50 Firmware
Published: 2021-04-09
Last modified: 2026-07-05

Description

Unibox SMB 2.4 and UniBox Enterprise Series 2.4 and UniBox Campus Series 2.4 contain a cross-site request forgery (CSRF) vulnerability in /tools/network-trace, /list_users, /list_byod?usertype=raduser, /dhcp_leases, /go?rid=202 in which a specially crafted HTTP request may reconfigure the device.

Frequently asked questions

What is CVE-2020-21884?: Unibox SMB 2.4 and UniBox Enterprise Series 2.4 and UniBox Campus Series 2.4 contain a cross-site request forgery (CSRF) vulnerability in /tools/network-trace, /list_users, /list_byod?usertype=raduser, /dhcp_leases, /go?rid=202 in which a specially crafted HTTP request may reconfigure the device.
How severe is CVE-2020-21884?: CVE-2020-21884 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-21884 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-21884?: CVE-2020-21884 primarily affects Indionetworks Unibox U50 Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-21884?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-21884 published?: CVE-2020-21884 was published on 2021-04-09 and last updated on 2026-07-05.

References

Affected products (5)

cpe:2.3:o:indionetworks:unibox_u50_firmware:2.4:*:*:*:*:*:*:*
cpe:2.3:o:indionetworks:unibox_u500_firmware:2.4:*:*:*:*:*:*:*
cpe:2.3:o:indionetworks:unibox_u1000_firmware:2.4:*:*:*:*:*:*:*
cpe:2.3:o:indionetworks:unibox_u2500_firmware:2.4:*:*:*:*:*:*:*
cpe:2.3:o:indionetworks:unibox_u5000_firmware:2.4:*:*:*:*:*:*:*

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