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.
| Software | From | Fixed in |
|---|---|---|
| audiocodes / fax_server | - | 2.6.23.x |
| audiocodes / interactive_voice_response | - | 2.6.23.x |
- https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt
- https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html
- https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf
- https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-world-writable-webroot-lpe
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