Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 6.4%
CVSS Severity
CVSS v3 Score 7.8
References
- 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
Products affected by CVE-2025-34333
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cpe:2.3:a:audiocodes:fax_server:*
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cpe:2.3:a:audiocodes:interactive_voice_response:*