TOTOLINK X5000R cstecgi.cgi snprintf os command injection
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
A vulnerability was determined in TOTOLINK X5000R 9.1.0cu.2089_B20211224. Affected by this issue is the function snprintf of the file /cgi-bin/cstecgi.cgi?action=exportOvpn&type=user. This manipulation of the argument User causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized.
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 | X5000R | 9.1.0cu.2089_B20211224 | — | No fix listed | CNA |
- X5000R VendorTOTOLINK Affected 9.1.0cu.2089_B20211224 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-14586
- 2026-10-03 Alias added: GHSA-g5qq-5f56-7h93
References
More TOTOLINK X5000r Firmware vulnerabilities
- TI-2025-43097 TOTOLINK X5000R v9.1.0cu_2415_B20250515 contains an argument injection vulnerability in… CVSS 3.1CRITICAL 9.8
- TI-2025-12054 Incorrect authorization in TOTOLINK X5000R's CVSS 3.1CRITICAL 9.8
- TI-2024-28597 In TOTOLINK X5000r v9.1.0cu.2350_b20230313, the file /cgi-bin/cstecgi.cgi contains an OS… CVSS 3.1CRITICAL 9.8
- TI-2024-28595 In TOTOLINK X5000r v9.1.0cu.2350_b20230313, the file /cgi-bin/cstecgi.cgi contains an OS… CVSS 3.1CRITICAL 9.8
- TI-2024-28587 In TOTOLINK X5000r v9.1.0cu.2350_b20230313, the file /cgi-bin/cstecgi.cgi contains an OS… CVSS 3.1CRITICAL 9.8
- TI-2024-21298 TOTOLINK X5000R V9.1.0cu.2350_B20230313 was discovered to contain a command injection… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-14586 · CVE Program
- CVE-2025-14586 · NVD
- FIRST EPSS
- GHSA-g5qq-5f56-7h93 · GitHub Advisory Database · CC BY 4.0
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