PatchTheCVECVE-2019-3998: Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauth
CVE-2019-3998 is a medium-severity flaw (CVSS 5.5) affecting simplisafe ss3 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to modify the Wi-Fi network the base station connects to.
Why this priority
- Public exploit reference
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 5.5 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 70%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2020-02-13 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2019-3998?
simplisafe ss3 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2019-3998 being exploited?
CVE-2019-3998 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2019-3998 affect?
CVE-2019-3998 affects simplisafe ss3 firmware. Severity is medium (CVSS 5.5). Authentication bypass using an alternate path or channel in SimpliSafe SS3 firmware 1.4 allows a local, unauthenticated attacker to modify the Wi-Fi network the base station connects to.
How urgent is CVE-2019-3998?
Priority 32/100. Public exploit reference