Vulnerability identifier: #VU15686

Vulnerability risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3891

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Yi Home Camera
Hardware solutions / Firmware

Vendor: YI Technology

Description
The vulnerability allows a physical attacker to downgrade firmware.

The vulnerability exists due to a logic flaw. A physical attacker can insert an SD card to downgrade firmware.

Mitigation
Update to the latest version.

Vulnerable software versions

Yi Home Camera: 27US 1.8.7.0D

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2018-0566

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.