Certain NETGEAR devices are affected by a buffer overflow by an authenticated user.
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R6900 before 1.0.2.8, R7000 before 1.0.9.88, R7900 before 1.0.3.18, R8000 before 1.0.4.46, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75 before 1.0.3.88, RAX80 before 1.0.3.88, and WNR3500Lv2 before 1.2.0.62.
Why it matters now
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 · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r6300v2_firmware:*:*:*:*:*:*:*:* | up to 1.0.4.52 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6300v2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* | before 1.0.1.52 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:* | before 1.0.2.8 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r6900:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* | before 1.0.9.88 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:* | before 1.0.3.18 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7900:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:r6300v2_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.4.52 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6300v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* Versions before 1.0.1.52 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:* Versions before 1.0.2.8 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r6900:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.9.88 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:* Versions before 1.0.3.18 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7900:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:* | before 1.4.1.50 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r7900p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:* | before 1.0.4.46 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:* | before 1.4.1.50 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8000p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:* | before 1.0.3.88 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:rax75:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:* | before 1.0.3.88 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:rax80:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wnr3500lv2_firmware:*:*:*:*:*:*:*:* | before 1.2.0.62 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr3500lv2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:* Versions before 1.4.1.50 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r7900p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:* Versions before 1.0.4.46 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:* Versions before 1.4.1.50 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8000p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:* Versions before 1.0.3.88 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:rax75:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:* Versions before 1.0.3.88 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:rax80:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:wnr3500lv2_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0.62 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr3500lv2:-:*:*:*:*:*:*:* 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-2021-45528
- 2026-10-03 Alias added: GHSA-q9cx-37c3-pggp
References
More NETGEAR R6300v2 Firmware vulnerabilities
- TI-2023-20186 Netgear DC112A 1.0.0.64, EX6200 1.0.3.94 and R6300v2 1.0.4.8 were discovered to contain a… CVSS 3.1HIGH 8.8
- TI-2021-20708 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-20725 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1CRITICAL 9.8
- TI-2020-18240 Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-20614 Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. CVSS 3.1CRITICAL 9.8
- TI-2020-18244 Certain NETGEAR devices are affected by incorrect configuration of security settings. CVSS 3.1CRITICAL 9.4
Sources
- CVE-2021-45528 · CVE Program
- CVE-2021-45528 · NVD
- FIRST EPSS
- GHSA-q9cx-37c3-pggp · 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