{"id":"CVE-2026-86136","title":"A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and…","summary":"A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","cwe":["CWE-22","CWE-476","CWE-862"],"vendor":"watchguard","product":"fireware","affected":["fireware >= 12.0, < 12.5.21","fireware >= 12.12, < 12.12.3","fireware >= 2025.0, < 2026.2.3","fireware >= 2026.3, < 2026.3.2"],"patched":["fireware 2026.3.2"],"published":"2026-09-30","updated":"2026-10-06","sourceUpdated":"2026-10-06T20:22:36.410","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-86136","references":[{"url":"https://psirt.watchguard.com/CVE-2026-86136","label":"5d1c2695-1a31-4499-88ae-e847036fd7e3"}],"tags":["nvd","cve.org"],"epss":0.00297,"epssPercentile":0.2223,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T14:42:26.667301Z"},"scores":{"nvd":8.1,"cna":7.1},"ingestedAt":"2026-09-29T23:52:50.549Z","slug":"CVE-2026-86136","body":"## Overview\n\nA missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.\n\n## Affected\n\n- `fireware >= 12.0, < 12.5.21`\n- `fireware >= 12.12, < 12.12.3`\n- `fireware >= 2025.0, < 2026.2.3`\n- `fireware >= 2026.3, < 2026.3.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `fireware 2026.3.2`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":216831,"id":"CVE-2026-86136","ts":1791321670943,"field":"cvss","old":"7.1","new":"8.1"}]}