{"id":"CVE-2026-86105","title":"An improper authorization vulnerability in Fireware OS's Access Portal reverse proxy allows an authenticated, low-privileged Access Portal user to access other web applications they are not authorized for by sending a specially crafted r…","summary":"An improper authorization vulnerability in Fireware OS's Access Portal reverse proxy allows an authenticated, low-privileged Access Portal user to access other web applications they are not authorized for by sending a specially crafted r…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-22","CWE-176","CWE-285"],"vendor":"WatchGuard","product":"Fireware OS","affected":["fireware_os >= 2026.3 < 2026.3.2","fireware_os >= 2025.0 < 2026.2.3","fireware_os >= 12.0 < 12.12.3","fireware_os >= 12.0 < 12.5.21"],"published":"2026-09-30","updated":"2026-09-30","sourceUpdated":"2026-09-30T00:16:36.550","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86105","references":[{"url":"https://psirt.watchguard.com/CVE-2026-86105","label":"5d1c2695-1a31-4499-88ae-e847036fd7e3"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-09-29T23:52:50.547Z","slug":"CVE-2026-86105","body":"## Overview\n\nAn improper authorization vulnerability in Fireware OS's Access Portal reverse proxy allows an authenticated, low-privileged Access Portal user to access other web applications they are not authorized for by sending a specially crafted request for a different resource which they are authorized to access.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}