What’s Vulnerable › Vulnerabilities

CVE-2026-6157: Totolink A800R app.so setAppEasyWizardConfig buffer overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-13 · updated 2026-10-26
• Weakness: CWE-119

Description

A vulnerability was detected in Totolink A800R 4.1.2cu.5137_B20200730. This impacts the function setAppEasyWizardConfig in the library /lib/cste_modules/app.so. The manipulation of the argument apcliSsid results in buffer overflow. The attack can be executed remotely. The exploit is now public and may be used.

Affected products

• TOTOLINK A800R: 4.1.2cu.5137_B20200730

References

• https://github.com/xyh4ck/iot_poc/blob/main/TOTOLINK/A800R/01_Buffer_Overflow_setAppEasyWizardConfig.md
• https://vuldb.com/submit/793114
• https://vuldb.com/vuln/357037
• https://vuldb.com/vuln/357037/cti
• https://www.totolink.net/

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