Vulnerability Description
A vulnerability was determined in Tenda FH451 1.0.0.9. Affected is the function sub_3C434 of the file /goform/AdvSetWan. This manipulation of the argument wanmode/PPPOEPassword causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Tenda | Fh451 Firmware | 1.0.0.9 |
| Tenda | Fh451 | - |
Related Weaknesses (CWE)
References
- https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.mdExploitIssue Tracking
- https://vuldb.com/?ctiid.349580Permissions RequiredVDB Entry
- https://vuldb.com/?id.349580Third Party AdvisoryVDB Entry
- https://vuldb.com/?submit.765330Third Party AdvisoryVDB Entry
- https://www.tenda.com.cn/Product
FAQ
What is CVE-2026-3678?
CVE-2026-3678 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability was determined in Tenda FH451 1.0.0.9. Affected is the function sub_3C434 of the file /goform/AdvSetWan. This manipulation of the argument wanmode/PPPOEPassword causes stack-based buff...
How severe is CVE-2026-3678?
CVE-2026-3678 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-3678?
Check the references section above for vendor advisories and patch information. Affected products include: Tenda Fh451 Firmware, Tenda Fh451.