CVE-2025-34332

AudioCodes Fax/IVR Appliance <= 2.6.23 Insecure Service Control Scripts LPE

HIGH
7.8
CVSS Score
Published: November 19, 2025 at 04:23 PM UTC
Updated: October 18, 2026 at 08:10 PM UTC
3 products affected across 1 vendorInteractive Voice ResponseFax ServerFax/IVR Appliance

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component that controls back-end Windows services using helper batch scripts located under C:\\F2MAdmin\\F2E\\AudioCodes_files\\utils\\Services. When certain service actions are requested through ajaxPost.php, these scripts are invoked by PHP using system() under the NT AUTHORITY\\SYSTEM account. The batch files in this directory are writable by any authenticated local user due to overly permissive ACLs, allowing them to replace script contents with arbitrary commands. On the next service start/stop operation, the modified script is executed as SYSTEM, enabling elevation of local privileges.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versionsv ≤ 2.6.23
All versionsv ≤ 2.6.23
0 ≤ v ≤ 2.6.23

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-276

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