CVE-2021-47815

HIGH
2026-01-16 [email protected]
7.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
PoC Detected
Jan 21, 2026 - 21:54 vuln.today
Public exploit code
CVE Published
Jan 16, 2026 - 00:16 nvd
HIGH 7.5

Tags

Denial Of Service Nsauditor

Description

Nsauditor 3.2.3 contains a denial of service vulnerability in the registration code input field that allows attackers to crash the application. Attackers can paste a large buffer of 256 repeated characters into the 'Key' field to trigger an application crash.

Analysis

Nsauditor 3.2.3 contains a denial of service vulnerability in the registration code input field that allows attackers to crash the application. Attackers can paste a large buffer of 256 repeated characters into the 'Key' field to trigger an application crash. [CVSS 7.5 HIGH]

Technical Context

Classified as CWE-120 (Classic Buffer Overflow). Affects Nsauditor. Nsauditor 3.2.3 contains a denial of service vulnerability in the registration code input field that allows attackers to crash the application. Attackers can paste a large buffer of 256 repeated characters into the 'Key' field to trigger an application crash.

Affected Products

Vendor: Nsasoft. Product: Nsauditor. Versions: up to 3.2.3.

Remediation

Monitor vendor advisories for a patch. Enable ASLR, DEP/NX, and stack canaries where possible. Restrict network access to the affected service where possible.

Priority Score

58
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +38
POC: +20

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CVE-2021-47815 vulnerability details – vuln.today
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