CVE-2026-3678

7.4 highEPSS 0.6%

High (7.4) in tenda fh451 firmware. EPSS 0.6% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

7.4 high

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
CWEs: CWE-119, CWE-121
Published: 2026-03-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:fh451_firmware

References

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

Check your stack JSON