How severe is CVE-2018-11402?

CVE-2018-11402 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11402?

CVE-2018-11402 affects Simplisafe U9k-kp1000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-11402 published?

CVE-2018-11402 was published on 2018-05-24 and last updated on 2026-06-17.

CVE-2018-11402

CVE-2018-11402 is a medium-severity vulnerability in Simplisafe U9k-kp1000 Firmware with a CVSS 3.x base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-319.

Key facts

Severity: Medium (CVSS 3.x base score 6.6)
CVSS v2: 1.9
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Simplisafe U9k-kp1000 Firmware
Published: 2018-05-24
Last modified: 2026-06-17

Description

SimpliSafe Original has Unencrypted Keypad Transmissions, which allows physically proximate attackers to discover the PIN.

Frequently asked questions

What is CVE-2018-11402?: SimpliSafe Original has Unencrypted Keypad Transmissions, which allows physically proximate attackers to discover the PIN.
How severe is CVE-2018-11402?: CVE-2018-11402 has a CVSS 3.x base score of 6.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11402?: CVE-2018-11402 affects Simplisafe U9k-kp1000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-11402 published?: CVE-2018-11402 was published on 2018-05-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:simplisafe:u9k-kp1000_firmware:-:*:*:*:*:*:*:*

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