What is CVE-2018-3934?

CVE-2018-3934 is a critical-severity vulnerability in Yitechnology Yi Home Camera. CVSS score: 9.8/10. Published 2018-11-02.

How severe is CVE-2018-3934?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-3934 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Yitechnology Yi Home Camera

CVE-2018-3934

An exploitable code execution vulnerability exists in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted set of UDP packets can cause a logic flaw, resulting in an authentication bypass. An attacker can sniff network traffic and send a set of packets to trigger this vulnerability.

EPSS: 0.026 (84.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Yitechnology Yi_home_camera
Yitechnology Yi_home_camera_firmware — versions 1.8.7.0d
Unknown Yi Technology — versions Yi Technology Home Camera 27US 1.8.7.0D

Public proof-of-concept exploits

BlueFootedBird/Senior-Design

References

talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-3934?: CVE-2018-3934 is a critical-severity vulnerability in Yitechnology Yi Home Camera. CVSS score: 9.8/10. Published 2018-11-02.
How severe is CVE-2018-3934?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-3934 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.