{"id":"CVE-2026-29126","aliases":["EUVD-2026-9518","GHSA-x4vv-6742-qcpf"],"status":"published","title":"World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE","description":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/AU:N/R:U","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00161,"percentile":0.05371,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732","CWE-863"],"published":"2026-03-05T01:51:06Z","modified":"2026-06-17T10:29:39Z","products":[{"vendor":"datacast","product":"sfx2100_firmware"},{"vendor":"international datacasting corporation","product":"sfx2100 satellite receiver"}],"references":[{"url":"https://www.abdulmhsblog.com/posts/sfx2100-vulns/","tags":["exploit","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29126"},{"url":"https://www.abdulmhsblog.com/posts/spfx-vulnrabilities"},{"url":"https://www.abdulmhsblog.com/posts/sfx2100-vulns"},{"url":"https://github.com/advisories/GHSA-x4vv-6742-qcpf"}],"sources":{"cve":[{"id":"CVE-2026-29126","title":"World-Writable, Root Owned/Run `/etc/udhcpc/default.script` in IDC SFX2100 Satellite Receiver Leads To Potential LPE","description":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.","status":"published","published":"2026-03-05T01:51:06.378Z","modified":"2026-03-05T16:59:33.634Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/AU:N/R:U","level":"high","assessor":"cna"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:19:56.284359Z"}],"euvd":[{"id":"EUVD-2026-9518","description":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.","status":"published","published":"2026-03-05T01:51:06Z","modified":"2026-03-05T16:59:33Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/AU:N/R:U","level":"high"}],"updated_at":"2026-11-02T19:48:08.87511Z"}],"ghsa":[{"id":"GHSA-x4vv-6742-qcpf","title":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in...","description":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.","status":"published","published":"2026-03-05T03:31:26Z","modified":"2026-03-11T21:30:59Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-732","CWE-863"],"updated_at":"2026-11-02T15:06:34.428268Z"}],"nvd":[{"id":"CVE-2026-29126","description":"Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script in International Data Casting (IDC) SFX2100 Satellite Receiver allows a local unprivileged attacker to potentially execute arbitrary commands with root privileges (local privilege escalation and persistence) via modification of a root-owned, world-writable BusyBox udhcpc DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost.","status":"published","published":"2026-03-05T02:16:51.993Z","modified":"2026-06-17T10:29:39.88Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-732","CWE-863"],"updated_at":"2026-11-02T14:12:07.852448Z"}]}}