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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | SimpliSafe SS3 | 1.0-1.3 | — | No fix listed | CNA |
- SimpliSafe SS3 Vendor— Affected 1.0-1.3 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:simplisafe:ss3_firmware:*:*:*:*:*:*:*:* | 1.0 – 1.3 | Vulnerable | Simplisafe |
| cpe:2.3:h:simplisafe:ss3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Simplisafe |
- 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
- 2026-10-02 Threatist record created from CVE-2019-3997
- 2026-10-03 Alias added: GHSA-xf4q-mw4x-gjfq
References
More Simplisafe Ss3 Firmware vulnerabilities
- TI-2020-04655 Improper authentication in SimpliSafe SS3 CVSS 3.1MEDIUM 4.6
Sources
- CVE-2019-3997 · CVE Program
- CVE-2019-3997 · NVD
- FIRST EPSS
- GHSA-xf4q-mw4x-gjfq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences