Stack-based buffer overflow in NETGEAR RAX30
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-121 and the CVSS impact.
Summary
NETGEAR RAX30 cmsCli_authenticate Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within a shared library used by the telnetd service, which listens on TCP port 23 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19918.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NETGEAR | RAX30 | 1.0.9.92_1 | — | No fix listed | CNA |
- RAX30 VendorNETGEAR Affected 1.0.9.92_1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-34285
- 2026-10-03 Alias added: GHSA-68jf-3wjw-q37v
References
Patch 1
Advisory 1
More NETGEAR Rax30 Firmware vulnerabilities
- TI-2023-26560 Stack-based buffer overflow in NETGEAR RAX30 CVSS 3.1HIGH 8.8
- TI-2022-23402 Improper authentication in NETGEAR Nighthawk WiFi6 Router CVSS 3.1HIGH 8.8
- TI-2023-12452 Buffer overflow in NETGEAR Nighthawk WiFi6 Router CVSS 3.1CRITICAL 9.8
- TI-2025-28644 In Netgear RAX30 V1.0.10.94, a PHP-FPM misconfiguration vulnerability is caused by not… CVSS 3.1CRITICAL 9.8
- TI-2023-12451 Buffer overflow in NETGEAR Nighthawk WiFi6 Router CVSS 3.1CRITICAL 9.8
- TI-2023-01254 Improper authentication in Netgear RAX30 CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-34285 · CVE Program
- CVE-2023-34285 · NVD
- FIRST EPSS
- GHSA-68jf-3wjw-q37v · GitHub Advisory Database · CC BY 4.0
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