PHP
CVE-2026-2035
MEDIUM
Severity by source
AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Deciso OPNsense diag_backup.php filename Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code 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 string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28131.
AnalysisAI
Remote code execution in Deciso OPNsense's backup functionality allows authenticated network-adjacent attackers to execute arbitrary commands with root privileges through insufficient input validation in the diag_backup.php file. An attacker with valid credentials can inject malicious commands into backup filename parameters to achieve code execution on the affected system. No patch is currently available for this vulnerability.
Technical ContextAI
Classified as CWE-78 (OS Command Injection). Deciso OPNsense diag_backup.php filename Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code 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 string before using it to execute a system call. An attacker can leverag
Affected ProductsAI
Deciso OPNsense diag_backup.php filename Command Injection Remote Code Execution Vulnerability
RemediationAI
Monitor vendor advisories for a patch.
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Same weakness CWE-78 – OS Command Injection
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External POC / Exploit Code
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