What is the CVSS score of CVE-2021-47820?

CVE-2021-47820 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Ubee EVW327 are affected by CVE-2021-47820?

Organizations using Ubee EVW327 should be aware of moderate risk from CVE-2021-47820, a cross-site request forgery vulnerability rated CVSS 5.3.

Is there a public PoC exploit available for CVE-2021-47820?

Yes, a public proof-of-concept exploit is available for CVE-2021-47820. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47820?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens are enforced.

Ubee EVW327 CVE-2021-47820

MEDIUM

Cross-Site Request Forgery (CSRF) (CWE-352)

2026-01-16 disclosure@vulncheck.com

CSRF

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 15:05 vuln.today

Public exploit code

CVE Published

Jan 16, 2026 - 19:16 nvd

MEDIUM 5.3

DescriptionCVE.org

Ubee EVW327 contains a cross-site request forgery vulnerability that allows attackers to enable remote access without user interaction. Attackers can craft a malicious webpage that automatically submits a form to change router remote access settings to port 8080 without the user's consent.

AnalysisAI

Technical ContextAI

Classified as CWE-352 (Cross-Site Request Forgery (CSRF)). Ubee EVW327 contains a cross-site request forgery vulnerability that allows attackers to enable remote access without user interaction. Attackers can craft a malicious webpage that automatically submits a form to change router remote access settings to port 8080 without the user's consent.

Affected ProductsAI

Ubee EVW327 contains a cross-site request forgery vulnerability that allows attackers to enable remote access without user interaction. Attackers can

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

CVE-2021-47820 vulnerability details – vuln.today

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Ubee EVW327 CVE-2021-47820

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code