How severe is CVE-2021-47802?

CVE-2021-47802 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-47802 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47802?

CVE-2021-47802 primarily affects Tenda D301 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-47802?

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.

Does CVE-2021-47802 have an EU (EUVD) identifier?

Yes. CVE-2021-47802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3650.

When was CVE-2021-47802 published?

CVE-2021-47802 was published on 2026-01-21 and last updated on 2026-06-17.

CVE-2021-47802

CVE-2021-47802 is a high-severity vulnerability in Tenda D301 Firmware with a CVSS 3.x base score of 7.5. 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-306.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3650
Weakness: CWE-306
Affected product: Tenda D301 Firmware
Published: 2026-01-21
Last modified: 2026-06-17

Description

Tenda D151 and D301 routers contain an unauthenticated configuration download vulnerability that allows remote attackers to retrieve router configuration files. Attackers can send a request to /goform/getimage endpoint to download configuration data including admin credentials without authentication.

Frequently asked questions

What is CVE-2021-47802?: Tenda D151 and D301 routers contain an unauthenticated configuration download vulnerability that allows remote attackers to retrieve router configuration files. Attackers can send a request to /goform/getimage endpoint to download configuration data including admin credentials without authentication.
How severe is CVE-2021-47802?: CVE-2021-47802 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-47802 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47802?: CVE-2021-47802 primarily affects Tenda D301 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-47802?: 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.
Does CVE-2021-47802 have an EU (EUVD) identifier?: Yes. CVE-2021-47802 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3650.
When was CVE-2021-47802 published?: CVE-2021-47802 was published on 2026-01-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:tenda:d301_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:tenda:d151_firmware:-:*:*:*:*:*:*:*

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