VULNERABILITY INTELLIGENCE

CVE-2018-3891

CVSS score4.6 MEDIUM

EPSS probability0.40%

CISA KEVNot currently listed

Published2018-11-02

Last modified2026-06-17

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

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.

Primary references

talos-cna@cisco.com — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory