Security readout for executives and security teams
Plain-English summary
CVE-2018-11399 concerns SimpliSafe Original alarm systems sending sensor event radio traffic without encryption. A nearby attacker could learn when alarm-related events occur, which may reveal occupancy patterns or security activity. The source bundle does not show remote exploitation, a CVSS score, or confirmed active abuse.
Executive priority
Treat this as a targeted physical-proximity privacy risk, not an internet-wide emergency. Prioritize locations where alarm activity could reveal sensitive occupancy, operations, or security response patterns.
Technical view
The CVE describes unencrypted sensor transmissions in SimpliSafe Original. The documented impact is disclosure of timing information for alarm-system events to a physically proximate attacker. The bundle does not provide affected version ranges, protocol details, proof of active exploitation, or a specific patch level.
Likely exposure
Exposure is most likely where legacy SimpliSafe Original systems are still deployed and sensor-event confidentiality matters, especially at homes, small offices, or facilities with accessible radio proximity. Exact affected versions are not identified in the bundle.
Exploitation context
The attacker must be physically nearby. The provided evidence supports passive information disclosure about event timing, not remote compromise, alarm disabling, or active exploitation in the wild. CISA KEV status is false in the bundle.
Researcher notes
The bundle is sparse: no CVSS vector, CWE, version range, exploit detail, or fixed release is included. Analysis should stay limited to unencrypted sensor-event transmission and proximity-based disclosure unless vendor advisories add more detail.
Mitigation direction
- Review the SimpliSafe advisory for vendor-supported remediation or upgrade guidance.
- Inventory any SimpliSafe Original deployments and identify business-critical locations.
- Engage SimpliSafe or the installer for supported replacement or configuration options.
- Avoid relying on affected systems for confidential occupancy or event-timing privacy.
- Apply compensating physical security where proximity-based observation is a concern.
Validation and detection
- Confirm whether any monitored site uses SimpliSafe Original equipment.
- Check vendor records, invoices, or device markings for model generation.
- Review the SimpliSafe advisory against each identified deployment.
- Document locations where event-timing disclosure would create business risk.
- Record whether vendor-supported remediation or replacement is available.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-11399 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://simplisafe.com/files/pdf/SimpliSafe_advisory_8-17-18.pdfCVE reference · x_refsource_MISC
- https://www.simpleorsecure.net/simplisafe-security-advisory/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.