LocalSystem code execution via unquoted service path
Published Jan 28, 2026 · Updated Jan 28, 2026
Privilege escalation in Seiko Epson Corporation SENADB 1.124 allows local users to execute code as LocalSystem via a crafted executable. The auto-start SENADB service registers seksmdb.exe under an unquoted C:\Program Files (x86)\EPSON_P2B\Printer Software\Status Monitor\ path, so Windows can resolve an attacker-placed executable first. Exploitation requires low-privileged local access and permission to write a candidate executable in a searched parent directory before service startup or reboot.
Summary
What happened
Privilege escalation in Seiko Epson Corporation SENADB 1.124 allows local users to execute code as LocalSystem via a crafted executable. The auto-start SENADB service registers seksmdb.exe under an unquoted C:\Program Files (x86)\EPSON_P2B\Printer Software\Status Monitor\ path, so Windows can resolve an attacker-placed executable first. Exploitation requires low-privileged local access and permission to write a candidate executable in a searched parent directory before service startup or reboot.
The record
- CVE
- CVE-2020-36984
- Published
- Jan 28, 2026
- Updated
- Jan 28, 2026
- Vendor
- Seiko Epson Corporation
- Product
- SENADB
- Classifications
- CWE-428, T1574.009
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 28, 2026CVE publishedPublication date reported by the CVE source.
- Jan 28, 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?
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- Affected versionversion=1.124
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
- EPSON 1.124 seksmdb.exe Unquoted Service Pathproof 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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