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IoT

CVE-2021-47802

8.7
High
EPSS 0.65%Jan 22, 2026

Unauthenticated config download on Tenda D151/D301 allows remote retrieval of admin credentials.

common questions

Is CVE-2021-47802 being exploited?

Not confirmed. CVE-2021-47802 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.65% probability of exploitation in the next 30 days.

How severe is CVE-2021-47802?

CVE-2021-47802 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2021-47802?

Not known from our data. No patch reference has been recorded for CVE-2021-47802, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.

What does CVE-2021-47802 affect?

CVE-2021-47802 affects Tenda D151, Tenda D301, Tenda routers with getimage endpoint. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2021-47802?

Upgrade firmware; disable remote admin; enforce VPN access.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
Tenda D151Tenda D301Tenda routers with getimage endpoint
impact

Attacker can fetch router config including admin credentials via /goform/getimage, enabling full device takeover.

action required

Patch when possible

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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