CVE-2020-5727

Name: CVE-2020-5727
Creator: NVD / NIST
Published: 2020-05-02T16:15:11.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.6/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2020-5727 is a medium-severity vulnerability rated 4.6/10 on the CVSS scale. Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to pair a rogue keypad to an armed system.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to pair a rogue keypad to an armed system.

Metrics

CVSS 3.1

4.6/10

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.39%

30.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Simplisafe	Ss3 Firmware	< 1.6

References

https://www.tenable.com/security/research/tra-2020-29Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2020-29Exploit, Third Party Advisory

Timeline

Published: May 2, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5727?

Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to pair a rogue keypad to an armed system.

How severe is CVE-2020-5727?

CVE-2020-5727 has a CVSS score of 4.6/10 (MEDIUM severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5727?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5727?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST