# CVE-2020-37205: Nsasoft RemShutdown buffer overflow in Name registration field

Source: https://junglewise.ai/threats/cve-2020-37205-nsasoft-remshutdown-buffer-overflow-in-name-registration-field  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-11. Updated: 2026-06-29  
License: CC BY 4.0 with a link back

CVE-2020-37205 · Severity: high · CVSS 7.5 · Published 2026-02-11

Nsasoft RemShutdown, a tool used for remote computer management and shutdown tasks, contains a flaw in its registration system. An attacker can cause the application to crash and become unavailable by entering an excessively long string of characters into the 'Name' registration field. This results in a denial-of-service condition, preventing legitimate users from using the software.

Vendors: [Nsasoft](https://junglewise.ai/threats/vendors/nsasoft).

## Quick answers

**Is CVE-2020-37205 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-37205 being exploited in the wild.

**How severe is CVE-2020-37205?** High severity, with a CVSS score of 7.5, published 11 February 2026.

**Which products and versions are affected?** Nsasoft Remshutdown 2.9.0.0.

**Is there a fix for CVE-2020-37205?** 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-2020-37205 attacked?** It is attacked with local access, in a network appliance.

**Am I affected by CVE-2020-37205?** Check whether you run Nsasoft Remshutdown 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 Nsasoft RemShutdown version 2.9.0.0. The vulnerability is located in the 'Name' field of the 'Enter Registration Code' dialog, which fails to properly validate the length of user-supplied input. An attacker can trigger the vulnerability by pasting a buffer of approximately 1,000 characters into the field and clicking 'Ok', leading to an application crash (Denial of Service). While some CVSS vectors suggest a network vector, the primary exploit method involves local user interaction with the registration interface. No official patch has been identified in the advisory.

## Affected products

- Nsasoft (NSAuditor) RemShutdown 2.9.0.0

## Timeline

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

## References

- [http://www.nsauditor.com/](http://www.nsauditor.com/)
- [https://www.exploit-db.com/exploits/47865](https://www.exploit-db.com/exploits/47865)
- [https://www.vulncheck.com/advisories/remshutdown-name-denial-of-service](https://www.vulncheck.com/advisories/remshutdown-name-denial-of-service)

## Related threats

- [NSAuditor RemShutdown buffer overflow in registration key input](https://junglewise.ai/threats/cve-2020-37204-nsauditor-remshutdown-buffer-overflow-in-registration-key-input)