What’s Vulnerable › Vulnerabilities

CVE-2026-4903: Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-119

Description

A flaw has been found in Tenda AC5 15.03.06.47. This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. This manipulation of the argument PPPOEPassword causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.

Affected products

• Tenda AC5: 15.03.06.47

References

• https://lavender-bicycle-a5a.notion.site/Tenda_AC5_QuickIndex_PPPOEPassword-32053a41781f808dae98f99c99bcb21c?source=copy_link
• https://vuldb.com/?ctiid.353654
• https://vuldb.com/?id.353654
• https://vuldb.com/?submit.777380
• https://www.tenda.com.cn/

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