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CVE-2025-34333— AudioCodes Fax/IVR Appliance <= 2.6.23 World-Writable Webroot LPE

Quick assessment

Affected
AudioCodes Limited AudioCodes Fax/IVR Appliance
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AudioCodes Fax Server是以色列AudioCodes公司的一个传真服务器。 AudioCodes Fax Server 2.6.23及之前版本存在安全漏洞，该漏洞源于过度宽松的文件系统权限，可能导致任意代码执行。

AI Predicted 8.4 Difficulty: Easy EPSS 0.20% · P10
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I. Basic Information for CVE-2025-34333

Vulnerability Information
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Vulnerability Title
AudioCodes Fax/IVR Appliance <= 2.6.23 World-Writable Webroot LPE
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
AudioCodes Fax Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AudioCodes Fax Server是以色列AudioCodes公司的一个传真服务器。 AudioCodes Fax Server 2.6.23及之前版本存在安全漏洞，该漏洞源于过度宽松的文件系统权限，可能导致任意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
AudioCodes Limited AudioCodes Fax/IVR Appliance 0 ~ 2.6.23 -

II. Public POCs for CVE-2025-34333

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III. Intelligence Information for CVE-2025-34333

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Security Blog Posts for CVE-2025-34333 (1)

Same Patch Batch · AudioCodes Limited · 2025-11-19 · 8 CVEs total

CVE-2025-34334 AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via TestFax.php & L
CVE-2025-34335 AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via ActivateLicense
CVE-2025-34328 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Upload RCE via ajaxScript.php
CVE-2025-34332 AudioCodes Fax/IVR Appliance <= 2.6.23 Insecure Service Control Scripts LPE
CVE-2025-34331 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Read via download.php
CVE-2025-34329 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Backup Upload RCE via ajaxBackupUpl
CVE-2025-34330 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Prompt File Upload via ajaxPromptUp

IV. Related Vulnerabilities

Same product: AudioCodes Fax/IVR Appliance
Same vendor: AudioCodes Limited
Same weakness: CWE-276

V. Comments for CVE-2025-34333

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