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, and WNDR4300 before 1.0.2.94.
Why it matters now
EPSS 0.00708 53rd 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:r7800_firmware:*:*:*:*:*:*:*:* | before 1.0.2.40 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7800:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* | before 1.0.2.52 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr3700_firmware:*:*:*:*:*:*:*:* | before 1.0.2.92 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr3700:v4:*:*:*:*:*:*:* | v4 | Running on | NETGEAR |
| cpe:2.3:o:netgear:wndr4300_firmware:*:*:*:*:*:*:*:* | before 1.0.2.94 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wndr4300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-21183
- 2026-10-03 Alias added: GHSA-7h87-g2vc-3vfv
References
More NETGEAR R7800 Firmware vulnerabilities
- 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
Sources
- CVE-2018-21183 · CVE Program
- CVE-2018-21183 · NVD
- FIRST EPSS
- GHSA-7h87-g2vc-3vfv · 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