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CVE-2026-3678 - Vulnerability Analysis

HighCVSS: 8.8

Last Updated: March 7, 2026

Tenda FH451 - Buffer Overflow

Published: March 7, 2026Updated: March 7, 2026Remote Exploitable

Overview

Tenda FH451 1.0.0.9 contains a stack-based buffer overflow caused by manipulation of the wanmode/PPPOEPassword argument in /goform/AdvSetWan, letting remote attackers execute arbitrary code, exploit requires crafted request.

Severity & Score

Severity: High

CVSS Score: 8.8

Impact

Remote attackers can execute arbitrary code, potentially leading to full system compromise.

Mitigation

Update to the latest version.

References

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

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-3678
Severity: High
CVSS Score: 8.8
Type: buffer_overflow
Status: new

CWE

CWE-119

CVSS Metrics

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