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TI-2018-15165 Aliases CVE-2018-21203GHSA-wwpp-2rgq-6wcx

Certain NETGEAR devices are affected by a stack-based buffer overflow by an…

Priority LOW 39CWE-787Published · Updated

Key facts

Attack vector
Adjacent 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-787 and the CVSS impact.

Summary

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6100 before 1.0.1.20, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.50, and WNDR4500v3 before 1.0.0.50.

Why it matters now

EPSS 0.00784 56th 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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:*before 1.0.1.20VulnerableNETGEAR
cpe:2.3:h:netgear:r6100:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*before 1.0.2.52VulnerableNETGEAR
cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:*before 1.0.2.96VulnerableNETGEAR
cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*v4Running onNETGEAR
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*before 1.0.2.98VulnerableNETGEAR
cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*before 1.0.0.50VulnerableNETGEAR
cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:*v2Running onNETGEAR
  • cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.20 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.52 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.96 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:* Versions v4 Running on ·NETGEAR
  • cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.98 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
  • cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.50 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:*before 1.0.0.50VulnerableNETGEAR
cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:*v3Running onNETGEAR
  • cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.50 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:* Versions v3 Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-21203
  2. 2026-10-03 Alias added: GHSA-wwpp-2rgq-6wcx

References

Advisory 1

  • TI-2016-08250 The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-20972 Buffer Overflow vulnerability in Netgear- R61 router V1.0.1.28 allows a remote attacker… CVSS 3.1CRITICAL 9.8
  • TI-2018-15115 Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2017-13916 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
  • TI-2017-13914 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
  • TI-2018-15170 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
See all 78 →

Sources

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