Denial of Service Vulnerability in Nsauditor by Nsasoft
CVE-2021-47815

6.7MEDIUM

Key Information:

Vendor

Nsauditor

Status
Nsauditor
Vendor
CVE Published:
15 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47815?

Nsauditor version 3.2.3 is affected by a denial of service vulnerability that can be exploited via an oversized input in the registration code field. An attacker can trigger an application crash by pasting a large buffer of repeated characters into the 'Key' field, thus rendering the application unusable. This flaw emphasizes the importance of robust input validation practices to prevent such disruptions.

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Affected Version(s)

Nsauditor 3.2.3.0

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-2021-47815 - Proof of Concept

References

https://www.exploit-db.com/exploits/49965
exploit
http://www.nsauditor.com
product
https://www.vulncheck.com/advisories/nsauditor-denial-of-...
third-party-advisory

CVSS V4

Score:
6.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
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

Erick Galindo
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