How severe is CVE-2018-3947?

CVE-2018-3947 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-2018-3947 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3947?

CVE-2018-3947 primarily affects Yitechnology Yi Home. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-3947?

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-2018-3947 published?

CVE-2018-3947 was published on 2018-11-01 and last updated on 2026-06-17.

CVE-2018-3947

CVE-2018-3947 is a high-severity vulnerability in Yitechnology Yi Home 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-200.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Yitechnology Yi Home
Published: 2018-11-01
Last modified: 2026-06-17

Description

An exploitable information disclosure vulnerability exists in the phone-to-camera communications of Yi Home Camera 27US 1.8.7.0D. An attacker can sniff network traffic to exploit this vulnerability.

Frequently asked questions

What is CVE-2018-3947?: An exploitable information disclosure vulnerability exists in the phone-to-camera communications of Yi Home Camera 27US 1.8.7.0D. An attacker can sniff network traffic to exploit this vulnerability.
How severe is CVE-2018-3947?: CVE-2018-3947 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-2018-3947 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3947?: CVE-2018-3947 primarily affects Yitechnology Yi Home. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-3947?: 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-2018-3947 published?: CVE-2018-3947 was published on 2018-11-01 and last updated on 2026-06-17.

References

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0616

Affected products (2)

cpe:2.3:o:yitechnology:yi_home_camera_firmware:1.8.7.0d:*:*:*:*:*:*:*
cpe:2.3:a:yitechnology:yi_home:-:*:*:*:*:*:*:*

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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…

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