CVE-2025-34329: 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 expose an unauthenticated backup upload endpoint at AudioCodes_files/ajaxBackupUploadFile.php in the F2MAdmin web interface

Component: Not specified by the source

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

What an attacker can do

A remote attacker can upload web server or interpreter configuration files that cause a log file or other server-controlled resource to be treated as executable code. Vendor/CNA’s CVSS 4.0 assessment (base score 9.3/10) rates confidentiality, integrity and availability impact as high.