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

> Local users can escalate privileges to SYSTEM by modifying webroot scripts due to insecure file permissions on AudioCodes Fax/IVR appliances.

- **Severity:** High 8.5 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Nov 2025
- **Updated:** 20 Nov 2025
- **Also known as:** GHSA-g2p2-cfv2-vc48

## What is CVE-2025-34333?

CVE-2025-34333 is a high-severity vulnerability in AudioCodes Fax/IVR Appliance, published on 19 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.

### Official 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.

Weakness: CWE-276 (Incorrect Default Permissions)

## Which versions are affected by CVE-2025-34333?

It affects 2 products.


Products: Audiocodes Fax Server, Audiocodes Interactive Voice Response.

## How do I fix CVE-2025-34333?

No fix has been published for CVE-2025-34333 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-34333 being exploited?

There is no known exploitation of CVE-2025-34333 in the wild and no public exploit code.

## Other vulnerabilities in AudioCodes Fax/IVR Appliance

- [CVE-2025-34328](https://insights.sbomify.com/CVE-2025-34328/): AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Upload RCE via ajaxScript.php (critical 9.3)
- [CVE-2025-34329](https://insights.sbomify.com/CVE-2025-34329/): AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Backup Upload RCE via ajaxBackupUploadFile.php (critical 9.3)
- [CVE-2025-34331](https://insights.sbomify.com/CVE-2025-34331/): AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated File Read via download.php (high 8.7)
- [CVE-2025-34334](https://insights.sbomify.com/CVE-2025-34334/): AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via TestFax.php & LPE (high 8.7)
- [CVE-2025-34335](https://insights.sbomify.com/CVE-2025-34335/): AudioCodes Fax/IVR Appliance <= 2.6.23 Authenticated Command Injection via ActivateLicense.php (high 8.7)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-34333 and fix it if it is affected.

What it is: CVE-2025-34333 is a high-severity vulnerability in AudioCodes Fax/IVR Appliance, published on 19 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-34333 in the wild and no public exploit code.

Affected product: AudioCodes Fax/IVR Appliance. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-34333/ (Markdown: https://insights.sbomify.com/CVE-2025-34333/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-34333
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-34333
- OSV: https://osv.dev/vulnerability/CVE-2025-34333

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-34333/
Summaries are generated and may contain mistakes; the official description above is the record.