Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated…
Priority LOW 30CWE-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 DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
Why it matters now
EPSS 0.00462 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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:* | before 1.0.0.110 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:dgn2200:v4:*:*:*:*:*:*:* | v4 | Running on | NETGEAR |
| cpe:2.3:o:netgear:dgnd2200b_firmware:*:*:*:*:*:*:*:* | before 1.0.0.109 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:dgnd2200b:v4:*:*:*:*:*:*:* | v4 | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7300_firmware:*:*:*:*:*:*:*:* | before 1.0.0.70 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:* | before 1.0.2.130 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:* | before 1.0.2.130 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.110 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:dgn2200:v4:*:*:*:*:*:*:* Versions v4 Running on ·NETGEAR
- cpe:2.3:o:netgear:dgnd2200b_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.109 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:dgnd2200b:v4:*:*:*:*:*:*:* Versions v4 Running on ·NETGEAR
- cpe:2.3:o:netgear:r7300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.70 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.130 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.130 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-20740
- 2026-10-03 Alias added: GHSA-9j2r-7wv5-9gxw
References
More NETGEAR Dgn2200 Firmware vulnerabilities
- TI-2017-03982 ping.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote… KEVCVSS 3.1CRITICAL 9.8
- TI-2016-04910 Netgear DGN2200 and DGND3700 disclose the administrator password CVSS 3.0CRITICAL 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-2019-12970 Certain NETGEAR devices allow unauthenticated access to critical .cgi and .htm pages via… CVSS 3.1CRITICAL 9.8
- TI-2024-37767 A vulnerability in the Netgear DGN2200 router with firmware version v1.0.0.46 and earlier… CVSS 3.1HIGH 8.8
- TI-2017-04186 Cross-site request forgery (CSRF) vulnerability in NETGEAR DGN2200 routers with firmware… CVSS 3.0HIGH 8.8
Sources
- CVE-2019-20740 · CVE Program
- CVE-2019-20740 · NVD
- FIRST EPSS
- GHSA-9j2r-7wv5-9gxw · 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