What is the CVSS score of CVE-2021-47893?

CVE-2021-47893 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2021-47893?

Yes, a public proof-of-concept exploit is available for CVE-2021-47893. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2021-47893?

Within 24 hours: Disable the Trace Route feature in PingMaster Pro 2.1 across all deployments and communicate this limitation to end users. Within 7 days: Conduct an inventory of all systems running PingMaster Pro 2.1 and assess business-critical dependencies. Within 30 days: Contact AgataSoft for patch availability status, evaluate alternative tools, or plan migration to a patched version when released.

CVE-2021-47893

HIGH

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

2026-01-23 disclosure@vulncheck.com

Denial Of Service

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

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 - 15:03 vuln.today

Public exploit code

CVE Published

Jan 23, 2026 - 17:15 nvd

HIGH 7.5

DescriptionCVE.org

AgataSoft PingMaster Pro 2.1 contains a denial of service vulnerability in the Trace Route feature that allows attackers to crash the application by overflowing the host name input field. Attackers can generate a 10,000-character buffer and paste it into the host name field to trigger an application crash and potential system instability.

AnalysisAI

Technical ContextAI

Classified as CWE-770 (Allocation of Resources Without Limits or Throttling). Affects Trace Route feature. AgataSoft PingMaster Pro 2.1 contains a denial of service vulnerability in the Trace Route feature that allows attackers to crash the application by overflowing the host name input field. Attackers can generate a 10,000-character buffer and paste it into the host name field to trigger an application crash and potential system instability.

Affected ProductsAI

Product: Trace Route feature.

RemediationAI

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

CVE-2021-47893 vulnerability details – vuln.today

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CVE-2021-47893

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

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External POC / Exploit Code