{"id":"USN-8429-1","summary":"fastnetmon vulnerabilities","details":"It was discovered that FastNetMon incorrectly validated prefix lengths when\ndecoding BGP NLRI data. A remote attacker could possibly use this issue to\ncause a denial of service or execute arbitrary code. This issue only\naffected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-48686)\n\nIt was discovered that FastNetMon incorrectly sanitized input in the\nJuniper router integration plugin. An attacker could possibly use this\nissue to execute arbitrary commands. (CVE-2026-48687)\n\nIt was discovered that FastNetMon incorrectly handled buffer bounds checks\nwhen processing network traffic. A remote attacker could possibly use this\nissue to cause a denial of service or execute arbitrary code. This issue\nonly affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-48689)\n\nIt was discovered that FastNetMon incorrectly handled encoding the BGP\nAS_PATH attribute. A remote attacker could possibly use this issue to cause\na denial of service or execute arbitrary code. This issue only affected\nUbuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-48691)\n\nIt was discovered that FastNetMon incorrectly validated IP address input in\nthe Juniper router integration plugin. An attacker could possibly use this\nissue to inject arbitrary router configuration commands. (CVE-2026-48694)","modified":"2026-06-16T05:14:19.044875884Z","published":"2026-06-15T16:11:00Z","related":["UBUNTU-CVE-2026-48686","UBUNTU-CVE-2026-48687","UBUNTU-CVE-2026-48689","UBUNTU-CVE-2026-48691","UBUNTU-CVE-2026-48694"],"upstream":["CVE-2026-48686","CVE-2026-48687","CVE-2026-48689","CVE-2026-48691","CVE-2026-48694","UBUNTU-CVE-2026-48686","UBUNTU-CVE-2026-48687","UBUNTU-CVE-2026-48689","UBUNTU-CVE-2026-48691","UBUNTU-CVE-2026-48694"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8429-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48686"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48687"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48689"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48691"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-48694"}],"affected":[{"package":{"name":"fastnetmon","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/fastnetmon?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.4-1ubuntu0.1~esm1"}]}],"versions":["1.1.4-1","1.1.4-1build3","1.1.4-1build4","1.1.4-1build5"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.1.4-1ubuntu0.1~esm1","binary_name":"fastnetmon"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8429-1.json","cves_map":{"cves":[{"id":"CVE-2026-48687","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48694","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}},{"package":{"name":"fastnetmon","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/fastnetmon?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.6-1ubuntu0.1~esm1"}]}],"versions":["1.2.5-1","1.2.6-1","1.2.6-1build1","1.2.6-1build2","1.2.6-1build3","1.2.6-1build4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.2.6-1ubuntu0.1~esm1","binary_name":"fastnetmon"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8429-1.json","cves_map":{"cves":[{"id":"CVE-2026-48686","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48687","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48689","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48691","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48694","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:24.04:LTS"}}},{"package":{"name":"fastnetmon","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/fastnetmon?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.8+git20250911-2ubuntu0.1~esm1"}]}],"versions":["1.2.8+git20250911-1","1.2.8+git20250911-1build1","1.2.8+git20250911-1build2","1.2.8+git20250911-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_version":"1.2.8+git20250911-2ubuntu0.1~esm1","binary_name":"fastnetmon"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8429-1.json","cves_map":{"cves":[{"id":"CVE-2026-48686","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48687","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48689","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48691","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-48694","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:26.04:LTS"}}}],"schema_version":"1.7.5"}