Buffer overflow in Tenda Ac8
CVE-2026-3044
A vulnerability has been found in Tenda AC8 16.03.34.06. This affects the function webCgiGetUploadFile of the file /cgi-bin/UploadCfg of the component Httpd Service. The manipulation of the argument boundary leads to stack-based buffer ove…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (27.5th 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 Ac8 — versions 16.03.34.06
Weakness classification (CWE)
References
- VDB-347400 | Tenda AC8 Httpd Service UploadCfg webCgiGetUploadFile stack-based overflow (vdb-entry, technical-description)
- VDB-347400 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #757240 | Tenda AC8V4 V16.03.34.06 Stack-based Buffer Overflow (third-party-advisory)
- github.com/master-abc/cve/issues/43 (exploit, issue-tracking)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-3044?
- CVE-2026-3044 is a high-severity vulnerability in Tenda Ac8, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-02-23.
- How severe is CVE-2026-3044?
- High severity. CVSS v3 base score is 8.8 out of 10.