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CVE-2026-31027 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 1, 2026

TOTOlink A3600R - Buffer Overflow

Published: April 1, 2026Updated: April 1, 2026Remote Exploitable

Overview

TOTOlink A3600R v5.9c.4959 contains a buffer overflow caused by improper length validation of the rootSsid parameter in setAppEasyWizardConfig interface, letting remote attackers execute arbitrary code or cause denial of service, exploit requires crafted request.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Remote attackers can execute arbitrary code or cause denial of service, potentially compromising the device.

Mitigation

Update to the latest version of TOTOlink A3600R firmware.

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/ToTolink/A3600R/rootSsid-setAppEasyWizardConfig.md

Related Resources

Details

CVE ID: CVE-2026-31027
Severity: Critical
CVSS Score: 9.8
Type: buffer_overflow
Status: new

CWE

CWE-120

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H