How severe is CVE-2020-37200?

CVE-2020-37200 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-2020-37200 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-37200?

CVE-2020-37200 affects Nsasoft Netsharewatcher. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-37200?

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-2020-37200 have an EU (EUVD) identifier?

Yes. CVE-2020-37200 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31190.

When was CVE-2020-37200 published?

CVE-2020-37200 was published on 2026-02-11 and last updated on 2026-06-29.

CVE-2020-37200

CVE-2020-37200 is a high-severity vulnerability in Nsasoft Netsharewatcher 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 4.6
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31190
Weakness: CWE-121
Affected product: Nsasoft Netsharewatcher
Published: 2026-02-11
Last modified: 2026-06-29

Description

NetShareWatcher 1.5.8.0 contains a buffer overflow vulnerability in the registration key input that allows attackers to crash the application by supplying oversized input. Attackers can generate a 1000-character payload and paste it into the registration key field to trigger an application crash.

Frequently asked questions

What is CVE-2020-37200?: NetShareWatcher 1.5.8.0 contains a buffer overflow vulnerability in the registration key input that allows attackers to crash the application by supplying oversized input. Attackers can generate a 1000-character payload and paste it into the registration key field to trigger an application crash.
How severe is CVE-2020-37200?: CVE-2020-37200 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-2020-37200 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-37200?: CVE-2020-37200 affects Nsasoft Netsharewatcher. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-37200?: 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-2020-37200 have an EU (EUVD) identifier?: Yes. CVE-2020-37200 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31190.
When was CVE-2020-37200 published?: CVE-2020-37200 was published on 2026-02-11 and last updated on 2026-06-29.

References

Affected products (1)

cpe:2.3:a:nsasoft:netsharewatcher:1.5.8.0:*:*:*:*:*:*:*

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