Read the docs
TI-2018-15134 Aliases CVE-2018-21172GHSA-hrmh-xxcw-xmxc

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

Priority LOW 31CWE-787Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
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 authenticated user. This affects R7800 before 1.0.2.40, R9000 before 1.0.2.52, WNDR3700v4 before 1.0.2.92, WNDR4300 before 1.0.2.94, WNDR4300v2 before 1.0.0.50, WNDR4500v3 before 1.0.0.50, and WNR2000v5 before 1.0.0.62.

Why it matters now

EPSS 0.00593 48th 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 · 14

CPEVersionsRoleVendor
cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*before 1.0.2.40VulnerableNETGEAR
cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:*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 1.0.2.92VulnerableNETGEAR
cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:*v4Running onNETGEAR
cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:*before 1.0.2.94VulnerableNETGEAR
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:r7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.40 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* 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 1.0.2.92 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:* Versions v4 Running on ·NETGEAR
  • cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.94 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 4 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:wnr2000_firmware:*:*:*:*:*:*:*:*before 1.0.0.62VulnerableNETGEAR
cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:*v5Running 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
  • cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.62 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:* Versions v5 Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-21172
  2. 2026-10-03 Alias added: GHSA-hrmh-xxcw-xmxc

References

Advisory 1

  • TI-2021-20706 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2020-09467 NETGEAR R7800 devices before 1.0.2.68 are affected by remote code execution by unauthenticated attackers. CVSS 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-2021-20710 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
  • TI-2021-16129 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
See all 245 →

Sources

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