How severe is CVE-2021-47815?

CVE-2021-47815 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-47815 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-47815?

CVE-2021-47815 affects Nsasoft Nsauditor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-47815?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2021-47815 have an EU (EUVD) identifier?

Yes. CVE-2021-47815 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3028.

When was CVE-2021-47815 published?

CVE-2021-47815 was published on 2026-01-16 and last updated on 2026-06-17.

CVE-2021-47815

CVE-2021-47815 is a high-severity vulnerability in Nsasoft Nsauditor with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 6.7
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-3028
Weakness: CWE-120
Affected product: Nsasoft Nsauditor
Published: 2026-01-16
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-47815?: 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.
How severe is CVE-2021-47815?: CVE-2021-47815 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-47815 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-47815?: CVE-2021-47815 affects Nsasoft Nsauditor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-47815?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2021-47815 have an EU (EUVD) identifier?: Yes. CVE-2021-47815 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-3028.
When was CVE-2021-47815 published?: CVE-2021-47815 was published on 2026-01-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nsasoft:nsauditor:*:*:*:*:*:*:*:*

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