OPNsense is a FreeBSD based firewall and routing platform.
OPNsense is a FreeBSD based firewall and routing platform. Prior to version 26.1.11, the Firewall Alias GeoIP importer's process_zip() and process_gzip() paths in src/opnsense/scripts/filter/lib/alias/geoip.py use an unvalidated CSV country_code value to construct output filenames below /usr/local/share/GeoIP/alias. A user with Firewall Alias Edit privilege can configure an attacker-controlled GeoIP source URL and supply an archive whose country code traverses into another existing directory, causing attacker-controlled content to be written as root with an -IPv4 or -IPv6 suffix. A crafted new
Read at NIST National Vulnerability Database (CVE API 2.0)
- Product
- FreeBSD / OpenBSD / NetBSD, pfSense / OPNsense
- CVSS
- 9.9
- EPSS
- 0.009 (p58)
- Exposure class
- Operating system, Edge / VPN / firewall
Why it ranks 30 (Notable)
- CVSS 9.9 critical
- Exposed product class: edge / VPN / firewall
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-57155 on this site · NVD · CVE.org · Vulnpedia
Related coverage
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