Is CVE-2020-37207 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2020-37207 being exploited in the wild.

How severe is CVE-2020-37207?

High severity, with a CVSS score of 7.5, published 11 February 2026.

Is there a fix for CVE-2020-37207?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2020-37207 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2020-37207?

Check whether you run Nsasoft Spotdialup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2020-37207: Nsasoft SpotDialup buffer overflow in registration key field

CVE-2020-37207 · Severity: high · CVSS 7.5 · Published 2026-02-11

SpotDialup, a tool used for recovering dial-up and VPN passwords, contains a flaw that allows the application to be crashed. An attacker can trigger this by entering an excessively long registration key into the software's activation field. This results in a denial-of-service, preventing legitimate users from using the application on the affected machine.

Vendors: Nsasoft.

Quick answers

Is CVE-2020-37207 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2020-37207 being exploited in the wild.
How severe is CVE-2020-37207?: High severity, with a CVSS score of 7.5, published 11 February 2026.
Which products and versions are affected?: Nsasoft Spotdialup 1.6.7.
Is there a fix for CVE-2020-37207?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2020-37207 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2020-37207?: Check whether you run Nsasoft Spotdialup at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A classic buffer overflow (CWE-120) exists in SpotDialup 1.6.7 within the registration key input mechanism. The application fails to perform adequate bounds checking on the 'Key' field during the registration process. An attacker can trigger a crash by supplying a 1,000-character string, leading to a denial-of-service condition. While some metrics suggest a network vector, the exploit typically requires local interaction where a user or attacker pastes the malicious payload into the application's GUI on a Windows system. A public Proof of Concept (PoC) exists.

Affected products

Nsasoft (NSAuditor) SpotDialup 1.6.7

Timeline

2020-01-06: disclosed: Initial exploit PoC published on Exploit-DB
2026-02-11: advisory: NVD publication date

References

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