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NVD 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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
2 versions affected across 2 products
| Date | Total | Labels |
|---|
| 2026-03-07 | 1 | Disclosure1 |
| 2026-03-08 | 2 | Disclosure2 |
| 2026-03-12 | 1 | Disclosure1 |
CVE Alert: CVE-2026-3678 - Tenda - FH451 - https://www.redpacketsecurity.com/cve-alert-cve-2026-3678-tenda-fh451/ #OSINT #ThreatIntel #CyberSecurity #cve-2026-3678 #tenda #fh451
Post summary
The tweet announces CVE-2026-3678 affecting Tenda FH451, offering a link to the RedPacketSecurity alert but without detailed technical, exploit, or mitigation information.
CVE-2026-3678 (CVSS:7.4, HIGH) is Analyzed. A vulnerability was determined in Tenda FH451 1.0.0.9. Affected is the function sub_3C434 of the file /goform/AdvSetWan...https://nvd.nist.gov/vuln/detail/CVE-2026-3678 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre
Post summary
The post announces the discovery of CVE-2026-3678, a high‑severity flaw in Tenda FH451 firmware affecting a specific function, without mentioning a PoC, exploit, or mitigation.
CVE-2026-3678 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/PPPOE… https://www.cve.org/CVERecord?id=CVE-2026-3678
Post summary
The post announces a new vulnerability in Tenda FH451 firmware, providing technical details of the affected function, but offers no proof of exploitation, active attacks, or patch.
[CVE-2026-3678: HIGH] Critical cyber security alert: Vulnerability discovered in Tenda FH451 1.0.0.9 allows for remote stack-based buffer overflow attack via manipulation of wanmode/PPPOEPassword argument in /...#cve,CVE-2026-3678,#cybersecurity https://cvefind.com/CVE-2026-3678
Post summary
A new high‑severity stack‑based buffer overflow vulnerability (CVE‑2026‑3678) was discovered in Tenda FH451 firmware 1.0.0.9, enabling remote exploitation by manipulating the wanmode/PPPOEPassword argument.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| HW | tenda | fh451 | - | - | - |
| OS | tenda | fh451_firmware | 1.0.0.9 | - | - |