CVE-2026-6015

HIGH

Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow

Title source: cna

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.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/356571

[Signature, Permissions Required] https://vuldb.com/vuln/356571/cti

[Third Party Advisory] https://vuldb.com/submit/791828

[Exploit] https://lavender-bicycle-a5a.notion.site/Tenda-AC9-QuickIndex-33153a41781f80458940f212f150a4fb?source=copy_link

[Product] https://www.tenda.com.cn/

Scores

CVSS v3 8.8

EPSS 0.0008

EPSS Percentile 23.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121

Status published

Products (1)

Tenda/AC9 15.03.02.13

Published Apr 10, 2026

Tracked Since Apr 10, 2026