Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker.
Priority LOW 39CWE-120Published · 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-120 and the CVSS impact.
Summary
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects R6220 before V1.1.0.50, R7800 before V1.0.2.36, WNDR3400v3 before 1.0.1.14, and WNDR3700v5 before V1.1.0.48.
Why it matters now
EPSS 0.00565 47th 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 · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* | before 1.1.0.50 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* | before 1.0.2.36 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:* | before 1.0.1.14 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr3400:v3:*:*:*:*:*:*:* | v3 | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* | before 1.1.0.48 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr3700:v5:*:*:*:*:*:*:* | v5 | Running on | NETGEAR |
- cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.50 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6220:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.36 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.14 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wndr3400:v3:*:*:*:*:*:*:* Versions v3 Running on ·NETGEAR
- cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* Versions before 1.1.0.48 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wndr3700:v5:*:*:*:*:*:*:* Versions v5 Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-18739
- 2026-10-03 Alias added: GHSA-vhvp-crrw-vcp3
References
More NETGEAR R6220 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-2021-20598 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
- TI-2020-16934 Authentication bypass in NETGEAR Multiple Routers CVSS 3.1HIGH 8.8
- TI-2021-20588 Certain NETGEAR devices are affected by authentication bypass. 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-2020-16335 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2017-18739 · CVE Program
- CVE-2017-18739 · NVD
- FIRST EPSS
- GHSA-vhvp-crrw-vcp3 · 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