Buffer overflow in Tenda Ac6
CVE-2026-4961
A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword lea…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (11.3th 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 Ac6 — versions 15.03.05.16
Weakness classification (CWE)
References
- VDB-353838 | Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow (vdb-entry, technical-description)
- VDB-353838 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #777617 | Tenda AC6 AC6 V1.0 V15.03.05.16 Buffer Overflow (third-party-advisory)
- lavender-bicycle-a5a.notion.site/Tenda-AC6-QuickIndex-32053a41781f80758e27fa425… (exploit)
- www.tenda.com.cn/ (product)
Frequently asked questions
- What is CVE-2026-4961?
- CVE-2026-4961 is a high-severity vulnerability in Tenda Ac6, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-27.
- How severe is CVE-2026-4961?
- High severity. CVSS v3 base score is 8.8 out of 10.