Buffer overflow in Tenda F456
CVE-2026-7079
A weakness has been identified in Tenda F456 1.0.0.5. This affects the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. This manipulation of the argument wanmode causes buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.010 (61.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.010 · change: +0.004
Affected products
- Tenda F456 — versions 1.0.0.5
- Tenda F456 Firmware — versions 1.0.0.5
Weakness classification (CWE)
References
- vuldb.com/vuln/359654 (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/359654/cti (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/submit/798461 (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/Litengzheng/vuldb_new/blob/main/F456/vul_130/README.md (Exploit, Third Party Advisory, exploit)
- www.tenda.com.cn/ (Product, product)
Frequently asked questions
- What is CVE-2026-7079?
- CVE-2026-7079 is a high-severity vulnerability in Tenda F456, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-27.
- How severe is CVE-2026-7079?
- High severity. CVSS v3 base score is 8.8 out of 10.