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TI-2021-05933 Aliases CVE-2021-23147GHSA-92gj-cjfc-w72m

Improper authentication in Netgear Nighthawk R6700

Priority LOW 30CWE-287Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

Netgear Nighthawk R6700 version 1.0.4.120 does not have sufficient protections for the UART console. A malicious actor with physical access to the device is able to connect to the UART port via a serial connection and execute commands as the root user without authentication.

Why it matters now

EPSS 0.00376 31st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Netgear Nighthawk R67001.0.4.120—No fix listedCNA
  • Netgear Nighthawk R6700 Vendor— Affected 1.0.4.120 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:netgear:r6700_firmware:1.0.4.120:*:*:*:*:*:*:*1.0.4.120VulnerableNETGEAR
cpe:2.3:h:netgear:r6700:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:r6700_firmware:1.0.4.120:*:*:*:*:*:*:* Versions 1.0.4.120 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23147
  2. 2026-10-03 Alias added: GHSA-92gj-cjfc-w72m

References

Advisory 1

  • TI-2016-05377 NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before… KEVCVSS 3.1HIGH 8.8
  • TI-2020-08805 Stack-based buffer overflow in NETGEAR R6700 CVSS 3.1HIGH 8.8
  • TI-2020-08804 Authentication bypass in NETGEAR R6700 CVSS 3.1HIGH 8.8
  • TI-2023-16567 Netgear D6220 with Firmware Version 1.0.0.80, D8500 with Firmware Version 1.0.3.60, R6700… CVSS 3.1HIGH 8.8
  • TI-2022-10624 Buffer overflow in NETGEAR R6700v3 CVSS 3.1HIGH 8.8
  • TI-2020-12311 Stack-based buffer overflow in NETGEAR Multiple Routers CVSS 3.1CRITICAL 9.8
See all 172 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences