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TI-2021-20695 Aliases CVE-2021-45608GHSA-6x83-8r8h-3w2x

Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected…

Priority MEDIUM 47CWE-190Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
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-190 and the CVSS impact.

Summary

Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker. Remote code execution from the WAN interface (TCP port 20005) cannot be ruled out; however, exploitability was judged to be of "rather significant complexity" but not "impossible." The overflow is in SoftwareBus_dispatchNormalEPMsgOut in the KCodes NetUSB kernel module. Affected NETGEAR devices are D7800 before 1.0.1.68, R6400v2 before 1.0.4.122, and R6700v3 before 1.0.4.122.

Why it matters now

EPSS 0.02702 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*before 1.0.1.68VulnerableNETGEAR
cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:*before 1.0.4.122VulnerableNETGEAR
cpe:2.3:h:netgear:r6400v2:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:*before 1.0.4.122VulnerableNETGEAR
cpe:2.3:h:netgear:r6700v3:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.68 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:d7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6400v2_firmware:*:*:*:*:*:*:*:* Versions before 1.0.4.122 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6400v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r6700v3_firmware:*:*:*:*:*:*:*:* Versions before 1.0.4.122 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6700v3:-:*:*:*:*:*:*:* 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-2021-45608
  2. 2026-10-03 Alias added: GHSA-6x83-8r8h-3w2x

References

Exploit 1

Patch 1

  • TI-2016-08250 The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter… KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-20705 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2021-16116 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1CRITICAL 10.0
  • TI-2021-16129 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2021-09955 Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. CVSS 3.1CRITICAL 9.9
  • TI-2020-16336 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
See all 171 →

Sources

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