Totolink N350RT cstecgi.cgi loginAuth stack-based overflow
Key facts
- Attack vector
- 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 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
A vulnerability, which was classified as critical, was found in Totolink N350RT 9.3.5u.6139_B202012. Affected is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to stack-based buffer overflow. It is possible to launch the attack remotely. The identifier of this vulnerability is VDB-249852. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| TOTOLINK | N350RT | 9.3.5u.6139_B202012 | — | No fix listed | CNA |
- N350RT VendorTOTOLINK Affected 9.3.5u.6139_B202012 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-7218
- 2026-10-03 Alias added: GHSA-pcwc-j2m8-3j5j
References
More TOTOLINK N350rt Firmware vulnerabilities
- TI-2025-32380 TOTOLINK N350RT V9.3.5u.6139_B20201216 was discovered to contain a buffer overflow via… CVSS 3.1CRITICAL 9.8
- TI-2024-28695 Incorrect access control in TOTOLINK N350RT V9.3.5u.6139_B20201216 allows attackers to… CVSS 3.1CRITICAL 9.8
- TI-2023-06603 Totolink N350RT cstecgi.cgi loginAuth stack-based overflow CVSS 3.1CRITICAL 9.8
- TI-2024-06916 TOTOLINK N350RT cstecgi.cgi setWizardCfg buffer overflow CVSS 4.0HIGH 8.7
- TI-2024-06794 TOTOLINK N350RT cstecgi.cgi setParentalRules buffer overflow CVSS 4.0HIGH 8.7
- TI-2023-06598 Totolink N350RT HTTP POST Request main stack-based overflow CVSS 3.1HIGH 8.8
Sources
- CVE-2023-7218 · CVE Program
- CVE-2023-7218 · NVD
- FIRST EPSS
- GHSA-pcwc-j2m8-3j5j · GitHub Advisory Database · CC BY 4.0
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