AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated users to request files stored on the appliance based solely on attacker-supplied path and filename parameters. While limited to specific file extensions permitted by the application logic, sensitive backup archives can be retrieved, exposing internal databases and credential hashes. Successful exploitation may lead to disclosure of administrative password hashes and other sensitive configuration data.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Fri, 12 Dec 2025 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Audiocodes fax Server
Audiocodes interactive Voice Response
CPEs cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*
Vendors & Products Audiocodes fax Server
Audiocodes interactive Voice Response
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Thu, 20 Nov 2025 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Audiocodes
Audiocodes fax\/ivr
CPEs cpe:2.3:h:audiocodes:fax\/ivr:*:*:*:*:*:*:*:*
Vendors & Products Audiocodes
Audiocodes fax\/ivr

Wed, 19 Nov 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 19 Nov 2025 16:45:00 +0000

Type Values Removed Values Added
Description AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 contain an unauthenticated file read vulnerability via the download.php script. The endpoint exposes a file download mechanism that lacks access control, allowing remote, unauthenticated users to request files stored on the appliance based solely on attacker-supplied path and filename parameters. While limited to specific file extensions permitted by the application logic, sensitive backup archives can be retrieved, exposing internal databases and credential hashes. Successful exploitation may lead to disclosure of administrative password hashes and other sensitive configuration data.
Title AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Read via download.php
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-11-20T15:21:17.005Z

Reserved: 2025-04-15T19:15:22.586Z

Link: CVE-2025-34331

cve-icon Vulnrichment

Updated: 2025-11-19T19:59:02.778Z

cve-icon NVD

Status : Analyzed

Published: 2025-11-19T17:15:47.967

Modified: 2025-12-12T16:05:32.090

Link: CVE-2025-34331

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses