What’s Vulnerable › Vulnerabilities

CVE-2026-6015: Tenda AC9 POST Request QuickIndex formQuickIndex stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-10 · updated 2026-10-26
• Weakness: CWE-119

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

• Tenda AC9: 15.03.02.13

References

• https://lavender-bicycle-a5a.notion.site/Tenda-AC9-QuickIndex-33153a41781f80458940f212f150a4fb?source=copy_link
• https://vuldb.com/submit/791828
• https://vuldb.com/vuln/356571
• https://vuldb.com/vuln/356571/cti
• https://www.tenda.com.cn/

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