CVE-2026-3678

HIGH EPSS 42.6%
Published Mar 7, 20263mo ago · Modified Jun 17, 20262w ago
7.4 CVSS 4.0
High
Find Similar
Published Mar 7, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
7.4
Exploitability
—
Impact
—
Vector string
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
42.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-121

Affected Products 2

VendorProductVersionRange
tendafh451_firmware1.0.0.9any
tendafh451*any

References 5

  • github.com https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_62/README.md
    ExploitIssue Tracking
  • vuldb.com https://vuldb.com/?ctiid.349580
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.349580
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.765330
    Third Party AdvisoryVDB Entry
  • tenda.com.cn https://www.tenda.com.cn/
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.