CVE-2025-34333
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductAudiocodes Fax Server
PublishedNov 19, 2025
First seenNov 19, 2025
Weakness typeCWE-276CWE-276
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| audiocodes fax_server | v ≤ 2.6.23 | — |
| audiocodes interactive_voice_response | v ≤ 2.6.23 | — |
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