Buffer Overflow Vulnerability in NetShareWatcher by NetShareWatcher
CVE-2020-37200

4.6MEDIUM

Key Information:

Vendor

Nsasoft

Status
Nsauditor Netsharewatcher
Vendor
CVE Published:
11 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37200?

NetShareWatcher 1.5.8.0 is vulnerable to a buffer overflow in the registration key input field. An attacker can exploit this vulnerability by submitting an oversized input, specifically a 1000-character payload, which can lead to the application crashing. This could result in potential Denial of Service (DoS), affecting the availability of the application. It is crucial for users of this product to apply any available patches and implement security best practices to mitigate this risk.

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Deploy the Patch

Affected Version(s)

Nsauditor NetShareWatcher 1.5.8.0

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-2020-37200 - Proof of Concept

References

https://www.exploit-db.com/exploits/47860
exploit
http://www.nsauditor.com/
product
https://www.vulncheck.com/advisories/netsharewatcher-key-...
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
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