FKIE_CVE-2026-29126

Vulnerability from fkie_nvd - Published: 2026-03-05 02:16 - Updated: 2026-03-11 18:34
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
b7efe717-a805-47cf-8e9a-921fca0ce0cehttps://www.abdulmhsblog.com/posts/sfx2100-vulns/Exploit, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.abdulmhsblog.com/posts/sfx2100-vulns/Exploit, Third Party Advisory
Impacted products
Vendor Product Version
datacast sfx2100_firmware -
datacast sfx2100 -
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:datacast:sfx2100_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "7C57B6A9-CAF9-4C8A-85FC-562E16F291FE",
              "vulnerable": true
            }
          ],
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect permission assignment (world-writable file) in /etc/udhcpc/default.script\u00a0in 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\u00a0DHCP event script, which is executed when a DHCP lease is obtained, renewed, or lost."
    },
    {
      "lang": "es",
      "value": "Asignaci\u00f3n incorrecta de permisos (archivo escribible por todos) en /etc/udhcpc/default.script en el receptor de sat\u00e9lite SFX2100 de International Data Casting (IDC) permite a un atacante local sin privilegios ejecutar potencialmente comandos arbitrarios con privilegios de root (escalada de privilegios local y persistencia) mediante la modificaci\u00f3n de un script de evento DHCP de BusyBox udhcpc propiedad de root y escribible por todos, que se ejecuta cuando se obtiene, renueva o pierde una concesi\u00f3n DHCP."
    }
  ],
  "id": "CVE-2026-29126",
  "lastModified": "2026-03-11T18:34:00.420",
  "metrics": {
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          "attackComplexity": "LOW",
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          "confidentialityImpact": "HIGH",
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        "impactScore": 5.9,
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    "cvssMetricV40": [
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          "Recovery": "USER",
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          "attackRequirements": "NONE",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
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          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
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          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
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          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "type": "Secondary"
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  "published": "2026-03-05T02:16:51.993",
  "references": [
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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