How severe is CVE-2020-37202?

CVE-2020-37202 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-2020-37202 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-37202?

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-2020-37202 have an EU (EUVD) identifier?

Yes. CVE-2020-37202 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31186.

When was CVE-2020-37202 published?

CVE-2020-37202 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2020-37202

CVE-2020-37202 is a high-severity vulnerability 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% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31186
Weakness: CWE-120
Published: 2026-02-11
Last modified: 2026-06-17

Description

NetworkSleuth 3.0.0.0 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized registration key. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.

Frequently asked questions

What is CVE-2020-37202?: NetworkSleuth 3.0.0.0 contains a denial of service vulnerability that allows attackers to crash the application by supplying an oversized registration key. Attackers can generate a 1000-character buffer payload and paste it into the registration key field to trigger an application crash.
How severe is CVE-2020-37202?: CVE-2020-37202 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-2020-37202 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-37202?: 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-2020-37202 have an EU (EUVD) identifier?: Yes. CVE-2020-37202 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31186.
When was CVE-2020-37202 published?: CVE-2020-37202 was published on 2026-02-11 and last updated on 2026-06-17.

References

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