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.

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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