Certain NETGEAR devices are affected by denial of service.
Priority LOW 21CWE-20Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Certain NETGEAR devices are affected by denial of service. This affects R6100 before 1.0.1.22, R7500 before 1.0.0.122, R7800 before 1.0.2.42, R8900 before 1.0.3.10, R9000 before 1.0.3.10, WNDR3700v4 before 1.0.2.96, WNDR4300 before 1.0.2.98, WNDR4300v2 before 1.0.0.54, WNDR4500v3 before 1.0.0.54, and WNR2000v5 before 1.0.0.64.
Why it matters now
EPSS 0.0047 40th 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:* | before 1.0.1.22 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:* | before 1.0.0.122 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* | before 1.0.2.42 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* | before 1.0.3.10 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* | before 1.0.3.10 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:r6100_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.22 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.122 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.42 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* Versions before 1.0.3.10 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.3.10 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* | before 1.0.2.96 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:* | v4 | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* | before 1.0.2.98 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* | before 1.0.0.54 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:* | v2 | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:* | before 1.0.0.54 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:* | v3 | Running on | NETGEAR |
| cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* | before 1.0.0.64 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:* | v5 | 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 1.0.0.54 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wndr4300:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
- cpe:2.3:o:netgear:wndr4500_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.54 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wndr4500:v3:*:*:*:*:*:*:* Versions v3 Running on ·NETGEAR
- cpe:2.3:o:netgear:wnr2000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.64 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr2000:v5:*:*:*:*:*:*:* Versions v5 Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-21141
- 2026-10-03 Alias added: GHSA-7wwm-59v9-9266
References
More NETGEAR R6100 Firmware vulnerabilities
- 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
Sources
- CVE-2018-21141 · CVE Program
- CVE-2018-21141 · NVD
- FIRST EPSS
- GHSA-7wwm-59v9-9266 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences