Local code execution via Base64 SEH overwrite
Published Feb 12, 2026 · Updated Feb 12, 2026
Stack-based buffer overflow in Nsasoft SpotAuditor 5.3.2 allows local users to execute arbitrary code through crafted Base64 input. The Base64 Encrypted Password tool accepts an oversized encoded payload that overwrites SEH control data and redirects execution to supplied shellcode. Exploitation requires access to the Windows desktop application and activation of Decrypt; code runs with the application's privileges.
Summary
What happened
Stack-based buffer overflow in Nsasoft SpotAuditor 5.3.2 allows local users to execute arbitrary code through crafted Base64 input. The Base64 Encrypted Password tool accepts an oversized encoded payload that overwrites SEH control data and redirects execution to supplied shellcode. Exploitation requires access to the Windows desktop application and activation of Decrypt; code runs with the application's privileges.
The record
- CVE
- CVE-2019-25336
- Published
- Feb 12, 2026
- Updated
- Feb 12, 2026
- Vendor
- Nsasoft
- Product
- SpotAuditor
- Classifications
- CWE-121, T1203
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 12, 2026CVE publishedPublication date reported by the CVE source.
- Feb 12, 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=5.3.2
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
- SpotAuditor 5.3.2 Base64 denial-of-service proof of conceptproof of concept · demonstrated
- SpotAuditor 5.3.2 Base64 SEH shellcode exploitfunctional · 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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