What’s Vulnerable › Vulnerabilities

CVE-2018-11399

• Severity: medium (CVSS 4.3 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-05-24 · updated 2026-06-17
• Weakness: CWE-319

Description

SimpliSafe Original has Unencrypted Sensor Transmissions, which allows physically proximate attackers to obtain potentially sensitive information about the specific times when alarm-system events occur.

Affected products

• Simplisafe U9K-Es1000 Firmware: all versions
• Simplisafe U9K-Kr1 Firmware: all versions
• Simplisafe U9K-Ms1000 Firmware: all versions
• Simplisafe U9K-Wt1000 Firmware: all versions

References

• https://simplisafe.com/files/pdf/SimpliSafe_advisory_8-17-18.pdf
• https://www.simpleorsecure.net/simplisafe-security-advisory/
• https://simplisafe.com/files/pdf/SimpliSafe_advisory_8-17-18.pdf
• https://www.simpleorsecure.net/simplisafe-security-advisory/

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