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TI-2025-24463 Aliases CVE-2025-34334GHSA-8fqr-64hx-fpfp

AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via TestFax.php & LPE

Priority MEDIUM 46CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 are vulnerable to an authenticated command injection in the fax test functionality implemented by AudioCodes_files/TestFax.php. When a fax "send" test is requested, the application builds a faxsender command line using attacker-supplied parameters and passes it to GlobalUtils::RunBatchFile without proper validation or shell-argument sanitization. The resulting batch file is written into a temporary run directory and then executed via a backend service that runs as NT AUTHORITY\\SYSTEM. An authenticated attacker with access to the fax test interface can craft parameter values that inject additional shell commands into the generated batch file, leading to arbitrary command execution with SYSTEM privileges. In addition, because the generated batch files reside in a location with overly permissive file system permissions, a local low-privilege user on the server can modify pending batch files to achieve the same elevation.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03436 89th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AudioCodes LimitedAudioCodes Fax/IVR Applianceup to 2.6.23—No fix listedCNA
  • AudioCodes Fax/IVR Appliance VendorAudioCodes Limited Affected up to 2.6.23 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:*up to 2.6.23VulnerableAudioCodes Limited
cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:*up to 2.6.23VulnerableAudioCodes Limited
  • cpe:2.3:a:audiocodes:fax_server:*:*:*:*:*:*:*:* Versions up to 2.6.23 Vulnerable ·AudioCodes Limited
  • cpe:2.3:a:audiocodes:interactive_voice_response:*:*:*:*:*:*:*:* Versions up to 2.6.23 Vulnerable ·AudioCodes Limited

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    AudioCodes Fax/IVR Appliance — audiocodes.com/media/g1in2u2o/0548-product-notice-end-of-se…

    8 records Highest priority Priority MEDIUM 5 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2025-24458 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Backup Upload RCE via ajaxBackupUploadFile.phpPriority MEDIUM 50
    • TI-2025-24457 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Upload RCE via ajaxScript.phpPriority MEDIUM 49
    • TI-2025-24464 AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via ActivateLicense.phpPriority MEDIUM 45
    Show all 8 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-34334
  2. 2026-10-03 Alias added: GHSA-8fqr-64hx-fpfp

References

Exploit 2

Patch 1

  • TI-2025-24458 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Backup Upload RCE via ajaxBackupUploadFile.php CVSS 4.0CRITICAL 9.3
  • TI-2025-24457 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Upload RCE via ajaxScript.php CVSS 4.0CRITICAL 9.3
  • TI-2025-24464 AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via ActivateLicense.php CVSS 4.0HIGH 8.7
  • TI-2025-24460 AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Read via download.php CVSS 4.0HIGH 8.7
  • TI-2025-24462 AudioCodes Fax/IVR Appliance <= 2.6.23 World-Writable Webroot LPE CVSS 4.0HIGH 8.5
  • TI-2025-24461 AudioCodes Fax/IVR Appliance <= 2.6.23 Insecure Service Control Scripts LPE CVSS 4.0HIGH 8.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences