Vulnerability · Published Apr 10, 2026 · Assigned by VulDB
CVE-2026-6015Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in AC9 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 42.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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 buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · 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
References
- VDB-356571 | Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow vdb-entry, technical-description
- VDB-356571 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #791828 | Tenda AC9 AC9 V1.0 V15.03.02.13 Buffer Overflow third-party-advisory
- https://lavender-bicycle-a5a.notion.site/Tenda-AC9-QuickIndex-33153a41781f80458940f212f150a4fb?source=copy_link exploit
- https://www.tenda.com.cn/ product