Read the docs
TI-2026-03172 Aliases CVE-2026-3677GHSA-pm9x-mf77-6wwq

Tenda FH451 setcfm fromSetCfm stack-based overflow

Priority HIGH 73CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

A vulnerability was found in Tenda FH451 1.0.0.9. This impacts the function fromSetCfm of the file /goform/setcfm. The manipulation of the argument funcname/funcpara1 results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00719 54th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TendaFH4511.0.0.9—No fix listedCNA
  • FH451 VendorTenda Affected 1.0.0.9 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:tenda:fh451_firmware:1.0.0.9:*:*:*:*:*:*:*1.0.0.9VulnerableTenda
cpe:2.3:h:tenda:fh451:-:*:*:*:*:*:*:*not specified by NVDRunning onTenda
  • cpe:2.3:o:tenda:fh451_firmware:1.0.0.9:*:*:*:*:*:*:* Versions 1.0.0.9 Vulnerable ·Tenda
  • cpe:2.3:h:tenda:fh451:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3677
  2. 2026-10-03 Alias added: GHSA-pm9x-mf77-6wwq

References

Exploit 1

Other 1

  • TI-2024-30872 Tenda FH451 v1.0.0.9 has a command injection vulnerability in the formexeCommand function i CVSS 3.1CRITICAL 9.8
  • TI-2024-30870 Tenda FH451 v1.0.0.9 has a stack overflow vulnerability located in the RouteStatic function. CVSS 3.1CRITICAL 9.8
  • TI-2026-03940 Tenda FH451 WrlclientSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03939 Tenda FH451 WrlExtraSet formWrlExtraSet stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-03173 Tenda FH451 AdvSetWan sub_3C434 stack-based overflow CVSS 4.0HIGH 8.7
  • TI-2026-02504 Tenda FH451 GstDhcpSetSer buffer overflow CVSS 4.0HIGH 8.7
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences