CVE-2026-102717 MQTT WebSocket - Information Disclosure & Denial of Service

MQTT WebSocket contains a memory disclosure or crash vulnerability caused by setter ABI mismatch, letting attackers cause denial of service or information disclosure, exploit requires crafted WebSocket messages.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.26% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
30 September 2026
Updated
15 October 2026
Weakness
CWE-125

Vendor fix

Update to the latest version with the ABI mismatch fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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