CVE-2025-34333

AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 configure the web document root at C:\\F2MAdmin\\F2E with overly permissive file system permissions. Authenticated local users have modify rights on this directory, while the associated web server process runs as NT AUTHORITY\\SYSTEM. As a result, any local user can create or alter server-side scripts within the webroot and then trigger them via HTTP requests, causing arbitrary code to execute with SYSTEM 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-world-writable-webroot-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 21:18

NVD link : CVE-2025-34333

Mitre link : CVE-2025-34333

CVE.ORG link : CVE-2025-34333

JSON object : View

Products Affected

audiocodes

fax_server
interactive_voice_response

CWE

CWE-276

Incorrect Default Permissions

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