Application crash via oversized registration key
Published Feb 11, 2026 · Updated Feb 11, 2026
Buffer overflow in Backup Key Recovery 2.2.5 allows local users to crash the application by entering an overly long registration key. The registration key field processes a 1,000-character value without checking the destination buffer size, terminating the process. Exploitation requires local access to the Windows desktop interface and active payload entry; the documented consequence is an application crash, not a system-wide outage.
Summary
What happened
Buffer overflow in Backup Key Recovery 2.2.5 allows local users to crash the application by entering an overly long registration key. The registration key field processes a 1,000-character value without checking the destination buffer size, terminating the process. Exploitation requires local access to the Windows desktop interface and active payload entry; the documented consequence is an application crash, not a system-wide outage.
The record
- CVE
- CVE-2020-37194
- Published
- Feb 11, 2026
- Updated
- Feb 11, 2026
- Vendor
- Nsasoft
- Product
- Backup Key Recovery
- Classifications
- CWE-120, T1499.004
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 11, 2026CVE publishedPublication date reported by the CVE source.
- Feb 11, 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.
- Affected versionversion=2.2.5
What conditions does exploitation require?
What is affected?
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.
Weakness, pattern, technique
Public exploit references
- Exploit-DB 47864 registration-key denial-of-service proof of conceptproof of concept · demonstrated
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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