{"id":"CVE-2026-107039","title":"Insecure permissions in the ActivityMain component of M66B/Marcel Bokhorst NetGuard no-root firewall versionCode 2026080101/versionName 2.337 allows unauthorized attackers to arbitrarily force a device reset or Denial of Service (DoS).","summary":"Insecure permissions in the ActivityMain component of M66B/Marcel Bokhorst NetGuard no-root firewall versionCode 2026080101/versionName 2.337 allows unauthorized attackers to arbitrarily force a device reset or Denial of Service (DoS).","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"adp","ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-30T18:01:58.732669Z"},"exploitAvailable":true,"published":"2026-10-29","updated":"2026-10-30","sourceUpdated":"2026-10-30T18:38:24.152Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107039","references":[{"url":"https://github.com/M66B/NetGuard"},{"url":"https://f-droid.org/packages/eu.faircode.netguard/"},{"url":"https://github.com/FFG0d/fdroid-android-advisories/blob/main/advisories/CVE-2026-107039.md"}],"tags":["cve.org","exploit-available"],"epss":0.00488,"epssPercentile":0.42227,"ingestedAt":"2026-11-05T16:24:31.339Z","slug":"CVE-2026-107039","body":"## Overview\n\nInsecure permissions in the ActivityMain component of M66B/Marcel Bokhorst NetGuard no-root firewall versionCode 2026080101/versionName 2.337 allows unauthorized attackers to arbitrarily force a device reset or Denial of Service (DoS).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}