CVE-2025-34330: AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web…
CVE-2025-34330 · Severity: medium · CVSS 5.3 · Published 2025-11-19
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component (F2MAdmin) that exposes an unauthenticated prompt upload endpoint at AudioCodes_files/utils/IVR/diagram/ajaxPromptUploadFile.php. The script accepts an uploaded file and writes it into the C:\\F2MAdmin\\tmp directory using a filename derived from application constants, without any authentication, authorization, or file-type validation. A remote, unauthenticated attacker can upload or overwrite prompt- or music-on-hold–related files in this directory, potentially leading to tampering with IVR audio content or preparing files for use in further attacks.
No. Junglewise Threat Intelligence has no report of CVE-2025-34330 being exploited in the wild.
How severe is CVE-2025-34330?
Medium severity, with a CVSS score of 5.3, published 19 November 2025.
Which products and versions are affected?
Audiocodes Fax Server, Audiocodes Interactive Voice Response. The advisory does not name versions.
Is there a fix for CVE-2025-34330?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-34330?
Check whether you run Audiocodes Fax Server or Audiocodes Interactive Voice Response. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.