CVE-2025-34333: AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 configure the web document…

CVE-2025-34333 · Severity: high · CVSS 7.8 · Published 2025-11-19

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.

Technologies: Audiocodes Fax Server, Audiocodes Interactive Voice Response. Vendors: Audiocodes.

Quick answers

Is CVE-2025-34333 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2025-34333 being exploited in the wild.
How severe is CVE-2025-34333?
High severity, with a CVSS score of 7.8, 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-2025-34333?
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-2025-34333?
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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