CVE-2025-34330
Description
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.
CVSS Details
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Threat Intelligence
Weaknesses 1
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| audiocodes | fax_server | * | ≤2.6.23 |
| audiocodes | interactive_voice_response | * | ≤2.6.23 |
References 4
- pierrekim.github.io https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt
- pierrekim.github.io https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html
- audiocodes.com https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf
- vulncheck.com https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-prompt-file-upload-via-ajaxpromptuploadfile
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.