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TI-2021-22431 Aliases CVE-2021-47815GHSA-649f-v3rg-phwg

Nsauditor 3.2.3 - Denial of Service (PoC)

Priority HIGH 69CWE-120Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00477 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NsasoftNsauditor3.2.3.0—No fix listedCNA
  • Nsauditor VendorNsasoft Affected 3.2.3.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nsasoft:nsauditor:*:*:*:*:*:*:*:*before 3.2.7VulnerableNsasoft
  • cpe:2.3:a:nsasoft:nsauditor:*:*:*:*:*:*:*:* Versions before 3.2.7 Vulnerable ·Nsasoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47815
  2. 2026-10-03 Alias added: GHSA-649f-v3rg-phwg

References

Exploit 1

Other 1

  • TI-2020-19254 Nsauditor 3.2.1.0 - Buffer Overflow (SEH+ASLR bypass (3 bytes overwrite)) CVSS 4.0HIGH 8.4
  • TI-2018-15438 Nsauditor 3.0.28.0 Local SEH Buffer Overflow CVSS 4.0HIGH 8.6
  • TI-2021-22509 Nsauditor 3.2.2.0 - 'Event Description' Denial of Service CVSS 4.0MEDIUM 6.7
  • TI-2020-19265 Nsauditor 3.2.0.0 - 'Name' Denial of Service CVSS 4.0MEDIUM 6.7
  • TI-2019-15650 NSauditor 3.1.2.0 Denial of Service via Community Field CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences