TOTOLINK EX1200T HTTP POST Request formPortFw buffer overflow
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A vulnerability, which was classified as critical, was found in TOTOLINK EX1200T 4.1.2cu.5232_B20210713. Affected is an unknown function of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 |
|---|---|---|---|---|---|
| TOTOLINK | EX1200T | 4.1.2cu.5232_B20210713 | — | No fix listed | CNA |
- EX1200T VendorTOTOLINK Affected 4.1.2cu.5232_B20210713 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-5793
- 2026-10-03 Alias added: GHSA-5fwc-pgj6-rcfv
References
More TOTOLINK Ex1200t Firmware vulnerabilities
- TI-2025-20695 TOTOLINK EX1200T V4.1.2cu.5232_B20210713 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-20694 TOTOLINK EX1200T V4.1.2cu.5232_B20210713 was found to contain a pre-auth remote command… CVSS 3.1CRITICAL 9.8
- TI-2025-05040 TOTOLINK EX1200T cstecgi.cgi setLanguageCfg stack-based overflow CVSS 4.0CRITICAL 9.3
- TI-2025-05966 TOTOLINK EX1200T HTTP POST Request formIpv6Setup buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-05794 TOTOLINK A702R/A3002R/A3002RU/EX1200T HTTP POST Request formIPv6Addr buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-05737 TOTOLINK EX1200T HTTP POST Request formTmultiAP buffer overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2025-5793 · CVE Program
- CVE-2025-5793 · NVD
- FIRST EPSS
- GHSA-5fwc-pgj6-rcfv · 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