SimpliSafe Original has Unencrypted Sensor Transmissions, which allows physically proximate attackers to obtain potentially sensitive infor…

published 2018-05-24 8y ago modified 2026-06-17 4mo ago also EUVD-2018-3433

cvss: 4.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

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.

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Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.3	CVSS:3.0/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD	2.0	1.9	AV:L/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information

References

simplisafe.com /files/pdf/SimpliSafe_advisory_8-17-18.pdf
simpleorsecure.net /simplisafe-security-advisory/
third-party-advisory

Sources

CVE List CVE-2018-11399
NVD CVE-2018-11399

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