CVE-2018-11400
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a...
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a notification if a physically proximate attacker removes the battery and external power.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a notification if a physically proximate attacker removes the battery and external power.
- Record
CVE-2018-11400- CVSS 3.0
- 4.6 Medium
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.9 Medium
AV:L/AC:L/Au:N/C:N/I:N/A:C - Updated
- 2026-11-02
CVE List No score
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a notification if a physically proximate attacker removes the battery and external power.
- Record
CVE-2018-11400- Updated
- 2026-11-02
EUVDEUVD-2018-3434 No score
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a notification if a physically proximate attacker removes the battery and external power.
- Record
EUVD-2018-3434- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8x45-65jf-g394
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a...
In SimpliSafe Original, the Base Station fails to detect tamper attempts: it does not send a notification if a physically proximate attacker removes the battery and external power.
- Record
GHSA-8x45-65jf-g394- CVSS 3.0
- 4.6 Medium
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-11400 is a medium vulnerability (CVSS 4.6) in Simplisafe U9k-bs1000 Firmware, published May 24, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 23rd percentile. No source names a fixed version.