CVE-2025-34331

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-34331
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.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt Exploit Third Party Advisory
https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html Exploit Third Party Advisory
https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf Product
https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-file-read-via-download Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*
History

12 Dec 2025, 16:05

Type Values Removed Values Added
CPE cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
References () https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt - () https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt - Exploit, Third Party Advisory
References () https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html - () https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html - Exploit, Third Party Advisory
References () https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf - () https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf - Product
References () https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-file-read-via-download - () https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-unauthenticated-file-read-via-download - Third Party Advisory
First Time Audiocodes interactive Voice Response
Audiocodes
Audiocodes fax Server

19 Nov 2025, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-11-19 17:15

Updated : 2025-12-12 16:05

NVD link : CVE-2025-34331

Mitre link : CVE-2025-34331

CVE.ORG link : CVE-2025-34331

JSON object : View

Products Affected

audiocodes

  • interactive_voice_response
  • fax_server
CWE
CWE-306

Missing Authentication for Critical Function