How severe is CVE-2018-3892?

CVE-2018-3892 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-3892 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3892?

CVE-2018-3892 affects Yitechnology Yi Home Camera Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3892?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-3892 published?

CVE-2018-3892 was published on 2018-11-02 and last updated on 2026-06-17.

CVE-2018-3892

CVE-2018-3892 is a high-severity vulnerability in Yitechnology Yi Home Camera Firmware with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Yitechnology Yi Home Camera Firmware
Published: 2018-11-02
Last modified: 2026-06-17

Description

An exploitable firmware downgrade vulnerability exists in the time syncing functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted packet can cause a buffer overflow, resulting in code execution. An attacker can intercept and alter network traffic to trigger this vulnerability.

Frequently asked questions

What is CVE-2018-3892?: An exploitable firmware downgrade vulnerability exists in the time syncing functionality of Yi Home Camera 27US 1.8.7.0D. A specially crafted packet can cause a buffer overflow, resulting in code execution. An attacker can intercept and alter network traffic to trigger this vulnerability.
How severe is CVE-2018-3892?: CVE-2018-3892 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-3892 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3892?: CVE-2018-3892 affects Yitechnology Yi Home Camera Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3892?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-3892 published?: CVE-2018-3892 was published on 2018-11-02 and last updated on 2026-06-17.

References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0567

Affected products (1)

cpe:2.3:o:yitechnology:yi_home_camera_firmware:1.8.7.0d:*:*:*:*:*:*:*

More vulnerabilities in Yitechnology Yi Home Camera Firmware

CVE-2018-3934 — Critical (CVSS 9.8): An exploitable code execution vulnerability exists in the firmware update functionality of Yi Home Camera 27US…
CVE-2018-3900 — High (CVSS 8.8): An exploitable code execution vulnerability exists in the QR code scanning functionality of Yi Home Camera 27US…
CVE-2018-3947 — High (CVSS 8.1): An exploitable information disclosure vulnerability exists in the phone-to-camera communications of Yi Home Camera 27US…
CVE-2018-3910 — High (CVSS 8.0): An exploitable code execution vulnerability exists in the cloud OTA setup functionality of Yi Home Camera 27US…
CVE-2018-3935 — High (CVSS 7.5): An exploitable code execution vulnerability exists in the UDP network functionality of Yi Home Camera 27US 1.8.7.0D. A…
CVE-2018-3899 — High (CVSS 7.5): An exploitable code execution vulnerability exists in the QR code scanning functionality of Yi Home Camera 27US…

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