TOTOLINK A702R formParentControl sub_418030 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 was determined in TOTOLINK A702R 4.0.0-B20211108.1423. This issue affects the function sub_418030 of the file /boafrm/formParentControl. Executing manipulation of the argument submit-url can lead to buffer overflow. The attack may be launched remotely. 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
- 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 | A702R | 4.0.0-B20211108.1423 | — | No fix listed | CNA |
- A702R VendorTOTOLINK Affected 4.0.0-B20211108.1423 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-9783
- 2026-10-03 Alias added: GHSA-xj6h-q5c9-g8r3
- 2026-10-05 EPSS moved to the 50th–90th percentile
References
More TOTOLINK A702r Firmware vulnerabilities
- TI-2025-07446 TOTOLINK A702R HTTP POST Request formWlanMultipleAP buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-06310 TOTOLINK A702R HTTP POST Request formParentControl buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-06199 TOTOLINK A702R HTTP POST Request formWlSiteSurvey 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-2025-05557 TOTOLINK A702R HTTP POST Request formSysLog buffer overflow CVSS 4.0HIGH 8.7
- TI-2025-04328 TOTOLINK A702R/A3002R/A3002RU HTTP POST Request formNtp buffer overflow CVSS 4.0HIGH 8.7
Sources
- CVE-2025-9783 · CVE Program
- CVE-2025-9783 · NVD
- FIRST EPSS
- GHSA-xj6h-q5c9-g8r3 · GitHub Advisory Database · CC BY 4.0
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