Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers…
Priority MEDIUM 45CWE-120Published · Updated
Key facts
- Attack vector
- 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
Buffer Overflow in Netgear R8000 Router with firmware v1.0.4.56 allows remote attackers to execute arbitrary code or cause a denial-of-service by sending a crafted POST to '/bd_genie_create_account.cgi' with a sufficiently long parameter 'register_country'.
Why it matters now
EPSS 0.01507 74th 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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-34236
- 2026-10-03 Alias added: GHSA-vfq9-7wg3-4mjx
References
More NETGEAR R8000 Firmware vulnerabilities
- TI-2016-05377 NETGEAR R6250 before 1.0.4.6.Beta, R6400 before 1.0.1.18.Beta, R6700 before… KEVCVSS 3.1HIGH 8.8
- TI-2022-10624 Buffer overflow in NETGEAR R6700v3 CVSS 3.1HIGH 8.8
- TI-2021-17770 The update process of the Circle Parental Control Service on various NETGEAR routers… CVSS 3.1HIGH 8.1
- TI-2018-15124 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-20709 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
- TI-2021-20699 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-34236 · CVE Program
- CVE-2021-34236 · NVD
- FIRST EPSS
- GHSA-vfq9-7wg3-4mjx · 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