# CVE-2025-34328: AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web…

Source: https://junglewise.ai/threats/cve-2025-34328-audiocodes-fax-server-and-auto-attendant-ivr-appliances-versions  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-19  
License: CC BY 4.0 with a link back

CVE-2025-34328 · Severity: critical · CVSS 9.8 · 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 script-management endpoint at AudioCodes_files/utils/IVR/diagram/ajaxScript.php. The saveScript action writes attacker-supplied data directly to a server-side file path under the privileges of the web service account, which runs as NT AUTHORITY\\SYSTEM on Windows deployments. A remote, unauthenticated attacker can write arbitrary files into the product’s web-accessible directory structure and subsequently execute them.

Technologies: [Audiocodes Fax Server](https://junglewise.ai/threats/technologies/fax-server), [Audiocodes Interactive Voice Response](https://junglewise.ai/threats/technologies/interactive-voice-response). Vendors: [Audiocodes](https://junglewise.ai/threats/vendors/audiocodes).

## Quick answers

**Is CVE-2025-34328 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-34328 being exploited in the wild.

**How severe is CVE-2025-34328?** Critical severity, with a CVSS score of 9.8, 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-2025-34328?** 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-2025-34328?** 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.

## Affected products

- Audiocodes Fax Server
- Audiocodes Interactive Voice Response

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