CVE-2025-34333

8.5 HIGH 0.2% exploit odds No fix listed Auth & access Server

What it is

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.

At a glance

Exploitability: Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2025-04-15 19:15 UTC ReservedThe CVE id was reserved by its CNA
2025-11-19 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-18 20:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.2% in the next 30 days (EPSS).
Severity: 8.5 HIGH (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2025-11-19 17:15 UTC
Last modified: 2026-10-18 20:10 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-276 · Incorrect default permissions
Record status: Analyzed

Affected

Audiocodes Fax Server ≤ 2.6.23
Audiocodes Interactive Voice Response ≤ 2.6.23

Attack profile CVSS 4.0 · 8.5

Attack vector: Local
Complexity: Low
Attack requirements: None
Privileges needed: Low
User interaction: None
Confidentiality: High
Integrity: High
Availability: High

Raw vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2025-34333.md and follow it. Check whether this project is affected by CVE-2025-34333. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record