What is the CVSS score of CVE-2021-47771?

CVE-2021-47771 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of Rdp Manager are affected by CVE-2021-47771?

Organizations using RDP Manager 4.9.9.3 should be aware of moderate risk from CVE-2021-47771 rated CVSS 5.5. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2021-47771?

Yes, a public proof-of-concept exploit is available for CVE-2021-47771. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47771?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Rdp Manager CVE-2021-47771

MEDIUM

Allocation of Resources Without Limits or Throttling (CWE-770)

2026-01-15 disclosure@vulncheck.com

Denial Of Service Rdp Manager

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Jan 26, 2026 - 16:15 vuln.today

Public exploit code

CVE Published

Jan 15, 2026 - 16:16 nvd

MEDIUM 5.5

DescriptionCVE.org

RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.

AnalysisAI

Rdp Manager versions up to 4.9.9.3 is affected by allocation of resources without limits or throttling (CVSS 5.5).

Technical ContextAI

This vulnerability (CWE-770: Allocation of Resources Without Limits or Throttling) affects Rdp Manager. RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.

RemediationAI

Monitor vendor advisories for a patch.

CVE-2021-47771 vulnerability details – vuln.today

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Rdp Manager CVE-2021-47771

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code