---
id: CVE-2025-34312
title: "IPFire versions prior to 2.29 (Core Update 198) contain\_a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the 'nobody' user via the BE_NAME parameter when installing a blacklist"
summary: "IPFire versions prior to 2.29 (Core Update 198) contain\_a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the 'nobody' user via the BE_NAME parameter when installing a blacklist. Whe…"
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: ipfire
product: ipfire
affected:
  - ipfire < 2.29
  - ipfire = 2.29
patched:
  - ipfire 2.29
published: '2025-10-28'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T00:10:00.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-34312'
references:
  - url: 'https://bugzilla.ipfire.org/show_bug.cgi?id=13887'
    label: disclosure@vulncheck.com
  - url: 'https://www.ipfire.org/blog/ipfire-2-29-core-update-198-released'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/ipfire-command-injection-via-url-filter-blacklist
    label: disclosure@vulncheck.com
tags:
  - nvd
epss: 0.02296
epssPercentile: 0.8255
ingestedAt: '2026-09-26T00:22:39.964Z'
---

## Overview

IPFire versions prior to 2.29 (Core Update 198) contain a command injection vulnerability that allows an authenticated attacker to execute arbitrary commands as the 'nobody' user via the BE_NAME parameter when installing a blacklist. When a blacklist is installed the application issues an HTTP POST to /cgi-bin/urlfilter.cgi and interpolates the value of BE_NAME directly into a shell invocation without appropriate sanitation. Crafted input can inject shell metacharacters, leading to arbitrary command execution in the context of the 'nobody' user.

## Affected

- `ipfire < 2.29`
- `ipfire = 2.29`

## Remediation

Upgrade past the affected range:

- `ipfire 2.29`