CVE-2025-34333: fax server through 2.6.23 (inclusive); +2 more affected products

Affected technology

fax server · through 2.6.23 (inclusive)
audiocodes

interactive voice response · through 2.6.23 (inclusive)
audiocodes

AudioCodes Fax/IVR Appliance · 0 through 2.6.23
AudioCodes Limited

Description’s affected range: versions up to and including 2.6.23 configure the web document root at C:\\F2MAdmin\\F2E with overly permissive file system permissions

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · Low privileges required · No user interaction required

What an attacker can do

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. Vendor/CNA’s CVSS 4.0 assessment (base score 8.5/10) rates confidentiality, integrity and availability impact as high.