Vulnerability · CVE-2026-3677
A vulnerability was found in Tenda FH451 1.0.0.9.
Published Mar 7, 2026 · catalog updated Jun 17, 2026 · fh451 firmware
Check if you run it
No confirmed exploitation is on record for CVE-2026-3677. EPSS is 1.05%. Act only if a listed version of fh451 firmware is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- High7.4
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 1.05%
- Remediation
- Advisory link
- Affected products
- cpe tenda/fh451 firmware
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe tenda/fh451 firmware1.0.0.9
How to fix CVE-2026-3677
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-3677. EPSS is 1.05%. Act only if a listed version of fh451 firmware is installed.
Which versions are affected?
Compare what you have installed with tenda/fh451 firmware 1.0.0.9. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-119: Buffer Overflow; CWE-121: Stack-based Buffer Overflow. EPSS 1.05%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Mar 7, 2026 · NIST NVD
Detected
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.
Jun 17, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-3677
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-3677
30-day exploitation probability 1.0%
first.org - NIST NVDVulnerability recordCVE-2026-3677
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
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.