# Insufficient input validation in NETGEAR Orbi routers

CVE record · `CVE-2026-0403`

- **Identifiers:** `CVE-2026-0403`
- **State:** Confirmed
- **Severity:** CVSS 1.1 Low
- **Critical:** No
- **CNA:** NETGEAR
- **Weakness (CWE):** [CWE-20](https://cwe.mitre.org/data/definitions/20.html)
- **Tags:** [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md)
- **Technologies:** [NETGEAR RBR750](https://agentprime.io/advisories/technology/netgear-rbr750.md) · [NETGEAR RBS750](https://agentprime.io/advisories/technology/netgear-rbs750.md) · [NETGEAR RBRE960](https://agentprime.io/advisories/technology/netgear-rbre960.md) · [NETGEAR RBSE960](https://agentprime.io/advisories/technology/netgear-rbse960.md) · [NETGEAR RBR850](https://agentprime.io/advisories/technology/netgear-rbr850.md) · [NETGEAR RBS850](https://agentprime.io/advisories/technology/netgear-rbs850.md) · [NETGEAR RBE971](https://agentprime.io/advisories/technology/netgear-rbe971.md) · [NETGEAR RBE970](https://agentprime.io/advisories/technology/netgear-rbe970.md) · [NETGEAR RBR860](https://agentprime.io/advisories/technology/netgear-rbr860.md) · [NETGEAR RBS860](https://agentprime.io/advisories/technology/netgear-rbs860.md)
- **Published:** 13 Jan 2026
- **Updated:** 4 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: NETGEAR) at 13 Jan 2026, 16:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: NETGEAR. Product: RBR750.
  - affected: `4.6.14.3 and earlier` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBS750.
  - affected: `4.6.14.3 and earlier` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBRE960.
  - affected: `before v7.2.7.15` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBSE960.
  - affected: `before v7.2.7.15` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBR850.
  - affected: `before V7.2.8.5` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBS850.
  - affected: `before V7.2.8.5` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBE971.
  - affected: `before v9.10.0.2` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBE970.
  - affected: `before v9.10.0.2` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBR860.
  - affected: `before v7.2.8.5` (custom)
  - Other versions: unaffected
- Vendor: NETGEAR. Product: RBS860.
  - affected: `before v7.2.8.5` (custom)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 1.1 Low, CVSS 4.0: `CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/R:U/V:D/RE:M/U:Amber`, from CNA (NETGEAR)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0033, the 26th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 13 Jan 2026, 16:00 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-0403)

## Sources

- [CVE List: CVE-2026-0403](https://www.cve.org/CVERecord?id=CVE-2026-0403)
- [NVD: CVE-2026-0403](https://nvd.nist.gov/vuln/detail/CVE-2026-0403)

### References from the CNA

- <https://www.netgear.com/support/product/rbr750> (product, patch)
- <https://www.netgear.com/support/product/rbs750> (patch, product)
- <https://www.netgear.com/support/product/rbre960> (product, patch)
- <https://www.netgear.com/support/product/rbse960> (product, patch)
- <https://www.netgear.com/support/product/rbr850> (product, patch)
- <https://www.netgear.com/support/product/rbs850> (product, patch)
- <https://www.netgear.com/support/product/rbe971> (product, patch)
- <https://www.netgear.com/support/product/rbe970> (product, patch)
- <https://www.netgear.com/support/product/rbr860> (product, patch)
- <https://www.netgear.com/support/product/rbs860> (product, patch)
- <https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-Advisory> (vendor-advisory)

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-0403>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-0403/>. Everything for agents: <https://agentprime.io/llms.txt>.