How severe is CVE-2019-5635?

CVE-2019-5635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-5635 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5635?

CVE-2019-5635 affects Belwith-keeler Hickory Smart Ethernet Bridge Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5635?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-5635 published?

CVE-2019-5635 was published on 2019-08-22 and last updated on 2026-06-17.

CVE-2019-5635

CVE-2019-5635 is a high-severity vulnerability in Belwith-keeler Hickory Smart Ethernet Bridge Firmware with a CVSS 3.x base score of 7.5. 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: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-319
Affected product: Belwith-keeler Hickory Smart Ethernet Bridge Firmware
Published: 2019-08-22
Last modified: 2026-06-17

Description

A cleartext transmission of sensitive information vulnerability is present in Hickory Smart Ethernet Bridge from Belwith Products, LLC. Captured data reveals that the Hickory Smart Ethernet Bridge device communicates over the network to an MQTT broker without using encryption. This exposed the default username and password used to authenticate to the MQTT broker. This issue affects Hickory Smart Ethernet Bridge, model number H077646. The firmware does not appear to contain versioning information.

Frequently asked questions

What is CVE-2019-5635?: A cleartext transmission of sensitive information vulnerability is present in Hickory Smart Ethernet Bridge from Belwith Products, LLC. Captured data reveals that the Hickory Smart Ethernet Bridge device communicates over the network to an MQTT broker without using encryption. This exposed the default username and password used to authenticate to the MQTT broker. This issue affects Hickory Smart Ethernet Bridge, model number H077646. The firmware does not appear to contain versioning information.
How severe is CVE-2019-5635?: CVE-2019-5635 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-5635 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5635?: CVE-2019-5635 affects Belwith-keeler Hickory Smart Ethernet Bridge Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5635?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-5635 published?: CVE-2019-5635 was published on 2019-08-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:belwith-keeler:hickory_smart_ethernet_bridge_firmware:-:*:*:*:*:*:*:*

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