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CVE-2021-40414

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-28 · updated 2026-06-17
• Weakness: CWE-284

Description

An incorrect default permission vulnerability exists in the cgiserver.cgi cgi_check_ability functionality of reolink RLC-410W v3.0.0.136_20121102. The SetMdAlarm API sets the movement detection parameters, giving the ability to set the sensitivity of the camera per a range of hours, and which of the camera spaces to ignore when considering movement detection. Because in cgi_check_ability the SetMdAlarm API does not have a specific case, the user permission will default to 7. This will give non-administrative users the possibility to change the movement detection parameters.

Affected products

• Reolink RLC-410W: 3.0.0.136_20121102

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425
• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1425

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