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Fencer Intel
medium 4.6

CVE-2019-3997 json

Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.0-1.3 allows a local, unauthenticated attacker to pai…

published 6y ago modified 4mo ago also EUVD-2019-13604

cvss
4.6
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.0-1.3 allows a local, unauthenticated attacker to pair a rogue keypad to an armed system.

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Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • tenable.com https://www.tenable.com/security/research/tra-2020-03 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • n/a SimpliSafe SS3

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.