PT-2025-47482 · Audiocodes · Audiocodes Fax Server+1

Pierre Barre · Published 2025-11-19 · Updated 2025-11-19 · CVE-2025-34333

Positive Technologies (AI Summary)

CVSS v4.0

8.5

High

Base vector

AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23

Description The AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 are configured with overly permissive file system permissions for the web document root located at C:F2MAdminF2E. Authenticated local users have modify rights on this directory, while the web server process runs with SYSTEM privileges. This allows local users to create or alter server-side scripts within the webroot and then trigger them via HTTP requests, resulting in arbitrary code execution with SYSTEM privileges.

Recommendations Versions prior to 2.6.23 should be used.

Exploit

Fix

LPE

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2025-34333

Affected Products

Audiocodes Auto-Attendant Ivr

Audiocodes Fax Server

References · 8

• 🔥 https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txt · Exploit
• 🔥 https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.html · Exploit
• https://osv.dev/vulnerability/CVE-2025-34333 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-34333 · Security Note
• https://audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdf · Patch, Vendor Advisory
• https://t.me/CVEtracker/37743 · Telegram Post
• https://twitter.com/CVEnew/status/1991187289243046136 · Twitter Post
• https://vulncheck.com/advisories/audiocodes-fax-ivr-appliance-world-writable-webroot-lpe · Note