CVE-2025-34333
AudioCodes Fax/IVR Appliance <= 2.6.23 World-Writable Webroot LPE
- State
- Published
- Severity
- 8.5 High
- Published
- Nov 19, 2025
- Updated
- Nov 20, 2025
- Reserved
- Apr 15, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | 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 | VulnCheck |
Weaknesses
- CWE-276 Incorrect Default Permissions
Affected Products
| Product | Versions |
|---|---|
AudioCodes Fax/IVR ApplianceAudioCodes Limited |
|
References
- https://www.audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-service-for-audiocodes-auto-attendant-ivr-solution.pdfvendor-advisorypatchmitigation
- https://pierrekim.github.io/blog/2025-11-20-audiocodes-fax-ivr-8-vulnerabilities.htmltechnical-descriptionexploit
- https://pierrekim.github.io/advisories/2025-audiocodes-fax-ivr.txttechnical-descriptionexploit
- https://www.vulncheck.com/advisories/audiocodes-fax-ivr-appliance-world-writable-webroot-lpethird-party-advisory
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