Root file creation via unsanitized backup filename
Published Dec 23, 2025 · Updated Dec 23, 2025
Path traversal in Deciso OPNsense 25.7 allows remote authenticated users to create arbitrary files as root via a crafted backup. The rrd_import function appends a backup-supplied filename to /var/db/rrd and writes decoded backup data without reducing the value to a basename. High-privilege authentication and access from an adjacent network are required; successful exploitation writes attacker-chosen data with root privileges.
Summary
What happened
Path traversal in Deciso OPNsense 25.7 allows remote authenticated users to create arbitrary files as root via a crafted backup. The rrd_import function appends a backup-supplied filename to /var/db/rrd and writes decoded backup data without reducing the value to a basename. High-privilege authentication and access from an adjacent network are required; successful exploitation writes attacker-chosen data with root privileges.
The record
- CVE
- CVE-2025-13698
- Published
- Dec 23, 2025
- Updated
- Dec 23, 2025
- Vendor
- Deciso B.V.
- Product
- OPNsense
- Classifications
- CWE-22
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 23, 2025CVE publishedPublication date reported by the CVE source.
- Dec 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
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Is a vulnerable build present?
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- Affected versionversion=25.7
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Technologies
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Your stack
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