CVE-2025-34332

AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component that controls back-end Windows services using helper batch scripts located under C:\\F2MAdmin\\F2E\\AudioCodes_files\\utils\\Services. When certain service actions are requested through ajaxPost.php, these scripts are invoked by PHP using system() under the NT AUTHORITY\\SYSTEM account. The batch files in this directory are writable by any authenticated local user due to overly permissive ACLs, allowing them to replace script contents with arbitrary commands. On the next service start/stop operation, the modified script is executed as SYSTEM, enabling elevation of local privileges.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt	Exploit Third Party Advisory
https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html	Exploit Third Party Advisory
https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf	Product
https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-insecure-service-control-scripts-lpe	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:audiocodes:fax_server::::::::
	cpe:2.3:a:audiocodes:interactive_voice_response::::::::

History

No history.

Information

Published : 2025-11-19 17:15

Updated : 2025-12-11 21:19

NVD link : CVE-2025-34332

Mitre link : CVE-2025-34332

CVE.ORG link : CVE-2025-34332

JSON object : View

Products Affected

audiocodes

fax_server
interactive_voice_response

CWE

CWE-276

Incorrect Default Permissions

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