Buffer overflow in Tenda Fh451
CVE-2025-7747
A vulnerability classified as critical has been found in Tenda FH451 1.0.0.9. This affects the function fromWizardHandle of the file /goform/WizardHandle of the component POST Request Handler. The manipulation of the argument PPW leads to…
Vulnerability class: Buffer Overflow
EPSS: 0.009 (75.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R.
Affected products
- Tenda Fh451 — versions 1.0.0.9
Weakness classification (CWE)
References
- VDB-316737 | Tenda FH451 POST Request WizardHandle fromWizardHandle buffer overflow (vdb-entry, technical-description)
- VDB-316737 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #615487 | Tenda FH451 v1.0.0.9 Buffer Overflow (third-party-advisory)
- github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md (related)
- github.com/zezhifu1/cve_report/blob/main/FH451/fromWizardHandle.md (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2025-7747?
- CVE-2025-7747 is a high-severity vulnerability in Tenda Fh451, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2025-07-17.
- How severe is CVE-2025-7747?
- High severity. CVSS v3 base score is 8.8 out of 10.