Buffer overflow in Tenda Ac9
CVE-2026-6015
A vulnerability has been found in Tenda AC9 15.03.02.13. Impacted is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. Such manipulation of the argument PPPOEPassword leads to stack-based buf…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (25.8th 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.
Affected products
- Tenda Ac9 — versions 1.0, 15.03.02.13
- Tenda Ac9_firmware — versions 15.03.02.13
Weakness classification (CWE)
References
- VDB-356571 | Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-356571 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #791828 | Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-6015?
- CVE-2026-6015 is a high-severity vulnerability in Tenda Ac9, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-04-10.
- How severe is CVE-2026-6015?
- High severity. CVSS v3 base score is 8.8 out of 10.