HOMEVULNERABILITIESCVE-2020-37200
HIGH

CVE-2020-37200

CWE-121Published: February 11, 2026· Updated: Feb 17, 2026

7.5
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:10.0th

Official 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.

NVD Source

Technical Analysis

CVE-2020-37200 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

nsasoft1 product
netsharewatcher
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (3)

Quick Facts

CVE IDCVE-2020-37200
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-121
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedFeb 11, 2026

Related CVEs (CWE-121)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-37200 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.