CVE-2021-47893
Unknown Unknown - Not Provided
Buffer Overflow in AgataSoft PingMaster Pro Trace Route Causes DoS

Publication date: 2026-01-23

Last updated on: 2026-01-23

Assigner: VulnCheck

Description
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.
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Meta Information
Published
2026-01-23
Last Modified
2026-01-23
Generated
2026-06-16
AI Q&A
2026-01-23
EPSS Evaluated
2026-06-14
NVD
CVE-2021-47893
EUVD
EUVD-2026-4292
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
agatasoft pingmaster_pro 2.1
agatasoft shutdown_pro 3.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
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Executive Summary

CVE-2021-47893 is a denial of service vulnerability in AgataSoft PingMaster Pro version 2.1. It occurs in the Trace Route feature where an attacker can input an excessively long string (up to 10,000 characters) into the host name input field. This buffer overflow causes the application to crash or become unresponsive, potentially leading to system instability. [2, 3]

Impact Analysis

This vulnerability can cause the AgataSoft PingMaster Pro application to crash or hang, resulting in denial of service. This means that legitimate users may be unable to use the Trace Route feature or the application itself until it is restarted, potentially causing disruption or instability on the affected system. [2, 3]

Detection Guidance

This vulnerability can be detected by attempting to reproduce the denial of service condition using the Trace Route feature in AgataSoft PingMaster Pro 2.1. Specifically, you can run a script to generate a 10,000-character buffer, then paste this buffer into the Host name field in the Trace Route tool and trigger the 'Get IP from host name' action. If the application crashes or becomes unresponsive, the vulnerability is present. A sample Python script to generate the buffer is: ```python buffer = 'S' * 10000 try: file = open("Gou.txt","w") file.write(buffer) file.close() print("Archive ready") except: print("Archive no ready") ``` After generating the file, copy its contents into the Host name field in the Trace Route feature and observe the application's behavior. [2, 3]

Mitigation Strategies

Immediate mitigation steps include avoiding the use of the Trace Route feature in AgataSoft PingMaster Pro 2.1 until a patch or update is available. Restrict user access to the application to prevent untrusted users from triggering the vulnerability. Monitor for application crashes or instability related to the Trace Route feature. Additionally, consider applying input validation or limiting the length of input in the Host name field if possible, or contact the vendor for updates or patches addressing this issue. [3]

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