How severe is CVE-2020-37199?

CVE-2020-37199 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-2020-37199 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-2020-37199?

CVE-2020-37199 affects Nsasoft Nbmonitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-37199?

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-2020-37199 have an EU (EUVD) identifier?

Yes. CVE-2020-37199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31189.

When was CVE-2020-37199 published?

CVE-2020-37199 was published on 2026-02-11 and last updated on 2026-06-29.

CVE-2020-37199

CVE-2020-37199 is a high-severity vulnerability in Nsasoft Nbmonitor 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: 4.6
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31189
Weakness: CWE-120
Affected product: Nsasoft Nbmonitor
Published: 2026-02-11
Last modified: 2026-06-29

Description

NBMonitor 1.6.6.0 contains a denial of service vulnerability in its registration key input that allows attackers to crash the application. Attackers can generate a 1000-character buffer payload and paste it into the 'Key' field to trigger an application crash.

Frequently asked questions

What is CVE-2020-37199?: NBMonitor 1.6.6.0 contains a denial of service vulnerability in its registration key input that allows attackers to crash the application. Attackers can generate a 1000-character buffer payload and paste it into the 'Key' field to trigger an application crash.
How severe is CVE-2020-37199?: CVE-2020-37199 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-2020-37199 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-2020-37199?: CVE-2020-37199 affects Nsasoft Nbmonitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-37199?: 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-2020-37199 have an EU (EUVD) identifier?: Yes. CVE-2020-37199 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31189.
When was CVE-2020-37199 published?: CVE-2020-37199 was published on 2026-02-11 and last updated on 2026-06-29.

References

Affected products (1)

cpe:2.3:a:nsasoft:nbmonitor:*:*:*:*:*:*:*:*

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