CVE-2026-3678

HIGH 8.8

Tenda FH451 AdvSetWan sub_3C434 stack-based overflow

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-121 CWE-119
Vendor	tenda
Product	fh451
Published	Mar 7, 2026
Last Updated	Mar 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Tenda / FH451

1.0.0.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/?id.349580 vuldb.com: https://vuldb.com/?ctiid.349580 vuldb.com: https://vuldb.com/?submit.765330 github.com: https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md tenda.com.cn: https://www.tenda.com.cn/

Credits

🔍 LtzHuster (VulDB User)