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CVE-2026-95844

Moquette denial of service

7.5 HIGHPublic exploitEPSS 0.36%
  1. Published23 Sept 2026

Description

Moquette is a lightweight Java MQTT broker. Prior to 0.18.1, Moquette does not limit the depth of topic names and topic filters before processing them through recursive CTrie insertion and matching operations. A remote client can publish or subscribe with a deeply nested topic, causing a StackOverflowError that disrupts session processing and can deny service to broker clients. This issue is fixed in version 0.18.1.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Moquette< 0.18.1

Remediation

Fixed in
Moquette≥ 0.18.1

References

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Frequently asked

Is CVE-2026-95844 being actively exploited?

CVE-2026-95844 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.36%.

How severe is CVE-2026-95844?

CVE-2026-95844 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.36% probability of exploitation.

Which products are affected by CVE-2026-95844?

Affected products include Moquette.

How do I fix CVE-2026-95844?

Upgrade affected software to a fixed version, for example Moquette 0.18.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-95844 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.