CVE-2018-3891

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-11-02 · updated 2026-06-17

Description

An exploitable firmware downgrade vulnerability exists in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted file can cause a logic flaw, resulting in a firmware downgrade. An attacker can insert an SD card to trigger this vulnerability.

Affected products

Yi Technology: 1.8.7.0d

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0566
https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0566

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