What’s Vulnerable › Vulnerabilities

CVE-2026-19821: Tenda AC12 httpd web management interface SetSysAutoRebbotCfg formSetRebootTimer buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-14 · updated 2026-08-18
• Weakness: CWE-119

Description

A vulnerability was determined in Tenda AC12 15.03.06.23_multi_TD01. This vulnerability affects the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd web management interface. This manipulation of the argument rebootTime causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

Affected products

• Tenda AC12: 15.03.06.23_multi_TD01

References

• https://github.com/lipenghai/iot_bug/blob/main/Tenda/AC12/4.md
• https://vuldb.com/cve/CVE-2026-19821
• https://vuldb.com/submit/868922
• https://vuldb.com/vuln/389954
• https://vuldb.com/vuln/389954/cti
• https://www.tenda.com.cn/

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