Read the docs
TI-2019-03001 Aliases CVE-2019-3997GHSA-xf4q-mw4x-gjfq

Improper authentication in SimpliSafe SS3

Priority LOW 21CWE-287Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

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.

Why it matters now

EPSS 0.00389 33rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—SimpliSafe SS31.0-1.3—No fix listedCNA
  • SimpliSafe SS3 Vendor— Affected 1.0-1.3 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:simplisafe:ss3_firmware:*:*:*:*:*:*:*:*1.0 – 1.3VulnerableSimplisafe
cpe:2.3:h:simplisafe:ss3:-:*:*:*:*:*:*:*not specified by NVDRunning onSimplisafe
  • cpe:2.3:o:simplisafe:ss3_firmware:*:*:*:*:*:*:*:* Versions 1.0 – 1.3 Vulnerable ·Simplisafe
  • cpe:2.3:h:simplisafe:ss3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Simplisafe

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-3997
  2. 2026-10-03 Alias added: GHSA-xf4q-mw4x-gjfq

References

  • TI-2020-04655 Improper authentication in SimpliSafe SS3 CVSS 3.1MEDIUM 4.6

Sources