RCE in Ipfire
CVE-2025-34312
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.022 · change: -0.001
Affected products
- Ipfire — versions 2.29
- Ipfire.org Ipfire — versions 0
Weakness classification (CWE)
References
- www.ipfire.org/blog/ipfire-2-29-core-update-198-released (vendor-advisory, Release Notes, patch)
- bugzilla.ipfire.org/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- www.vulncheck.com/advisories/ipfire-command-injection-via-url-filter-blacklist (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34312?
- CVE-2025-34312 is a high-severity vulnerability in Ipfire, classified under OS Command Injection. CVSS score: 8.8/10. Published 2025-10-28.
- How severe is CVE-2025-34312?
- High severity. CVSS v3 base score is 8.8 out of 10.