What is the CVSS score of CVE-2026-0404?

CVE-2026-0404 has a CVSS 3.1 base score of 8.0 (High). CVSS vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Rbs860 Firmware are affected by CVE-2026-0404?

CVE-2026-0404 presents notable security risk, a input validation vulnerability rated CVSS 8.0.. A patch is available.

How to fix or mitigate CVE-2026-0404?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Vendor patch is available.

Rbs860 Firmware CVE-2026-0404

HIGH

Improper Input Validation (CWE-20)

2026-01-13 a2826606-91e7-4eb6-899e-8484bd4575d5

Netgear Command Injection Rbs860 Firmware Rbr850 Firmware Rbse950 Firmware Rbre950 Firmware Rbr750 Firmware Rbs840 Firmware Rbr860 Firmware Rbr840 Firmware Rbs850 Firmware Rbs750 Firmware Rbse960 Firmware Rbre960 Firmware

8.0

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.0 HIGH

AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

Patch released

Feb 12, 2026 - 17:36 nvd

Patch available

CVE Published

Jan 13, 2026 - 16:16 nvd

HIGH 8.0

DescriptionCVE.org

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.

AnalysisAI

Authenticated attackers on the same network can execute arbitrary OS commands on NETGEAR Orbi routers (RBS860, RBR850, RBSE950) through improper validation of DHCPv6 input. The vulnerability requires local or WiFi network access but no user interaction, giving attackers full system compromise capabilities on affected devices. A patch is available for this high-severity flaw.

Technical ContextAI

Classified as CWE-20 (Improper Input Validation). Affects Rbr750 Firmware. 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.