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CVE-2026-4906: Tenda AC5 POST Request WizardHandle decodePwd stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-27 · updated 2026-06-17
• Weakness: CWE-119

Description

A vulnerability was determined in Tenda AC5 15.03.06.47. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

Affected products

• Tenda AC5: 15.03.06.47

References

• https://lavender-bicycle-a5a.notion.site/Tenda_AC5_WizardHandle_PPW-32053a41781f80cab094d750d30dc9a8?source=copy_link
• https://vuldb.com/?ctiid.353657
• https://vuldb.com/?id.353657
• https://vuldb.com/?submit.777394
• https://www.tenda.com.cn/

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