Denial of Service Vulnerability in NetworkSleuth by the Vendor NSAuditor
CVE-2020-37202

4.6MEDIUM

Key Information:

Vendor

Nsasoft

Status
Nsauditor Networksleuth
Vendor
CVE Published:
11 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37202?

NetworkSleuth version 3.0.0.0 is susceptible to a denial of service attack due to an improper validation of input data. Attackers can exploit this vulnerability by providing an excessively large registration key, which can exceed the application's buffer limits. Specifically, by entering a 1000-character payload in the registration key field, an attacker can trigger a crash of the application, rendering it unavailable for legitimate users. This type of attack may lead to disruption of services and potential loss of data integrity.

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Affected Version(s)

Nsauditor NetworkSleuth 3.0.0.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37202 - Proof of Concept

References

https://www.exploit-db.com/exploits/47853
exploit
http://www.nsauditor.com/
product
https://www.vulncheck.com/advisories/networksleuth-key-de...
third-party-advisory

CVSS V4

Score:
4.6
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ismail Tasdelen
JSON
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