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Vulnerabilities

Vulnerability · CVE-2025-13698

Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability.

Published Dec 23, 2025 · catalog updated Dec 24, 2025 · Deciso OPNsense

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2025-13698 is not in CISA KEV. FIRST estimates a 61.00% chance of exploitation in the next 30 days. Check whether you run Deciso OPNsense.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium4.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
61.00%
Remediation
Vendor / distro source
Affected products
vendor Deciso OPNsense 25.7

Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of backup configuration files. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of root. Was ZDI-CAN-28133.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Deciso OPNsense 25.725.7

How to fix CVE-2025-13698

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in 25.7

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-13698 is not in CISA KEV. FIRST estimates a 61.00% chance of exploitation in the next 30 days. Check whether you run Deciso OPNsense.

Which versions are affected?

Compare what you have installed with Deciso OPNsense 25.7 25.7. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 61.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

OPNsense security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 23, 2025 · EUVD

    Detected

    Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of backup configuration files. The issue results from the lack of proper

  2. Dec 24, 2025 · EUVD

    Updated

    Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of backup configuration files. The issue results from the lack of proper

Sources

  • CVE.orgVulnerability recordCVE-2025-13698

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-204967

    Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerabilit

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Dec 24, 2025. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 2, 2026
  • EUVDNov 1, 2026