CVE-2020-37122Public exploit

Application crash via oversized registration code

Published Feb 6, 2026 · Updated Feb 6, 2026

A stack-based buffer overflow in Nsasoft SpotFTP Password Recover 2.4.8 allows attackers to crash the application through its registration-code field. Processing a 1,000-character string of Z characters in the Key field overruns a stack buffer and terminates the process. Exploitation requires local interaction with the Windows graphical interface, and the documented consequence is limited to an application crash.

CVSS severity6.7
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A stack-based buffer overflow in Nsasoft SpotFTP Password Recover 2.4.8 allows attackers to crash the application through its registration-code field. Processing a 1,000-character string of Z characters in the Key field overruns a stack buffer and terminates the process. Exploitation requires local interaction with the Windows graphical interface, and the documented consequence is limited to an application crash.

The record

CVE
CVE-2020-37122
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
Nsasoft
Product
SpotFTP Password Recover
Classifications
CWE-121
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=2.4.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Nsasoft · SpotFTP Password Recoverversion=2.4.8

Published CVSS scores

7.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.7VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

Public exploit references

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

Technologies

Your stack

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Your stack

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