Buffer overflow in Tenda F453
CVE-2026-3399
A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component httpd. The manipulation of the argument dips leads to buffer overflow…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (28.3th 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 F453 — versions 1.0.0.3
Weakness classification (CWE)
References
- VDB-348294 | Tenda F453 httpd GstDhcpSetSer fromGstDhcpSetSer buffer overflow (vdb-entry, technical-description)
- VDB-348294 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #759631 | Tenda F453 v1.0.0.3 Buffer Access Using Size of Source Buffer (third-party-advisory)
- github.com/Litengzheng/vul_db/blob/main/F453/vul_83/README.md (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-3399?
- CVE-2026-3399 is a high-severity vulnerability in Tenda F453, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2026-03-01.
- How severe is CVE-2026-3399?
- High severity. CVSS v3 base score is 8.8 out of 10.