CVE-2025-34334
BaseFortify
Publication date: 2025-11-19
Last updated on: 2025-12-11
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| audiocodes | fax_server | to 2.6.23 (inc) |
| audiocodes | interactive_voice_response | to 2.6.23 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-78 | The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in AudioCodes Fax Server and Auto-Attendant IVR appliances up to version 2.6.23. It is an authenticated command injection flaw in the fax test functionality. When a fax send test is requested, the application constructs a command line using attacker-supplied parameters without proper validation or sanitization. This command line is written into a batch file and executed with SYSTEM-level privileges. An authenticated attacker can inject additional shell commands into this batch file, leading to arbitrary command execution with SYSTEM privileges. Additionally, local low-privilege users can modify these batch files due to overly permissive file system permissions, allowing privilege escalation.
How can this vulnerability impact me? :
This vulnerability can allow an authenticated attacker to execute arbitrary commands on the affected system with SYSTEM-level privileges, which is the highest level of access on Windows systems. This can lead to complete compromise of the affected device, including unauthorized access to sensitive data, disruption of services, installation of malware, and further attacks within the network. Local low-privilege users can also exploit the vulnerability to escalate their privileges to SYSTEM level.