CVE-2020-37207Public exploit

Application crash via oversized registration key

Published Feb 11, 2026 · Updated Feb 11, 2026

Buffer overflow in Nsasoft SpotDialup 1.6.7 allows local users to crash the application through the registration Key field. The registration dialog copies a pasted 1,000-character string from the Key field without verifying that it fits the destination buffer. Exploitation requires an interactive Windows session and clicking OK after pasting the payload; the demonstrated consequence is a process crash.

CVSS severity4.6
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflow in Nsasoft SpotDialup 1.6.7 allows local users to crash the application through the registration Key field. The registration dialog copies a pasted 1,000-character string from the Key field without verifying that it fits the destination buffer. Exploitation requires an interactive Windows session and clicking OK after pasting the payload; the demonstrated consequence is a process crash.

The record

CVE
CVE-2020-37207
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Nsasoft
Product
SpotDialup Password Recover
Classifications
CWE-120, T1499
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Nsasoft · SpotDialup Password Recoverversion=1.6.7

Published CVSS scores

4.6VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo