Local privilege escalation via unquoted service path
Published Dec 22, 2025 · Updated Dec 22, 2025
Unquoted service path in the CobianBackup11 service in CobianSoft Cobian Backup Gravity 11.2.0.582 allows local users to gain LocalSystem privileges. Windows starts cbService.exe from an unquoted path containing spaces, allowing a planted executable in a searched parent path to run instead. Exploitation requires local write access to a searched parent path and a service restart or system reboot; successful code runs as LocalSystem.
Summary
What happened
Unquoted service path in the CobianBackup11 service in CobianSoft Cobian Backup Gravity 11.2.0.582 allows local users to gain LocalSystem privileges. Windows starts cbService.exe from an unquoted path containing spaces, allowing a planted executable in a searched parent path to run instead. Exploitation requires local write access to a searched parent path and a service restart or system reboot; successful code runs as LocalSystem.
The record
- CVE
- CVE-2022-50688
- Published
- Dec 22, 2025
- Updated
- Dec 22, 2025
- Vendor
- CobianSoft
- Product
- Cobian Backup
- Classifications
- CWE-428, T1574.009
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 22, 2025CVE publishedPublication date reported by the CVE source.
- Dec 22, 2025Record 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=11.2.0.582
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
- CobianBackup11 Unquoted Service Pathproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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