CVE-2026-0403

HIGHNVD 8.08.0—

8.0

An insufficient input validation vulnerability in NETGEAR Orbi routers allows attackers connected to the router's LAN to execute OS command injections.

CVSS v3: 8.0
EG Score: 8.0(medium)
EPSS: 12.4%
KEV: Not listed

Published

January 13, 2026

Last Modified

February 20, 2026

References (11)

a2826606-91e7-4eb6-899e-8484bd4575d5https://kb.netgear.com/000070442/January-2026-NETGEAR-Security-Advisory
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbe970
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbe971
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbr750
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbr850
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbr860
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbre960
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbs750
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbs850
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbs860
a2826606-91e7-4eb6-899e-8484bd4575d5https://www.netgear.com/support/product/rbse960

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 11× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-12 23:12 UTCEPSS rescore
2026-06-11 14:00 UTCEPSS rescore
2026-06-10 22:18 UTCEPSS rescore
2026-06-10 13:22 UTCEPSS rescore
2026-06-08 14:17 UTCEPSS rescore
2026-06-08 14:17 UTCEPSS rescore
2026-06-07 15:25 UTCEPSS rescore
2026-06-07 15:24 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-06 13:47 UTCEPSS rescore
2026-06-05 22:47 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-05 06:10 UTCEPSS rescore
2026-06-04 13:12 UTCEPSS rescore
2026-06-04 13:12 UTCEPSS rescore
2026-06-04 13:12 UTCEPSS rescore
2026-06-02 20:13 UTCEPSS rescore
2026-06-02 20:13 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-06-01 13:51 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore
2026-05-31 00:16 UTCEPSS rescore

Show 4 more

2026-05-29 16:10 UTCEG score recompute
2026-05-29 16:10 UTCGHSA enrichment
2026-05-29 13:44 UTCEPSS rescore
2026-05-29 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-0403?

CVE-2026-0403 is a high vulnerability published on January 13, 2026. An insufficient input validation vulnerability in NETGEAR Orbi routers allows attackers connected to the router's LAN to execute OS command injections.

When was CVE-2026-0403 disclosed?

CVE-2026-0403 was first published in the National Vulnerability Database on January 13, 2026, with the most recent update on February 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-0403 actively exploited?

CVE-2026-0403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-0403?

CVE-2026-0403 has a CVSS v3 base score of 8.0 (NVD).

How do I remediate CVE-2026-0403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-0403, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-0403

📅 Published

🔄 Last Modified

🔗 References (11)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2026-0403?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (11)

Frequently asked(5)

Related CVEs(same CWE)