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P4Verified
CVE-2026-57155: core < 26.1.11
CVE-2026-57155. CVSS 3.1 base score 9.9 (CRITICAL, Vendor/CNA).
Affected technology
core · < 26.1.11
opnsense
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
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. Vendor/CNA’s CVSS 3.1 assessment (base score 9.9/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-22, CWE-73, CWE-78
- CCR priority
- 39.6 /100 (P4)
- CVSS 3.1
- 9.9 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H · Vendor/CNA
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-15 18:53:01.928580+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-57155.html