CVE-2026-44640

4.5 MEDIUM 0.1% exploit odds Fix listed Denial of service Browser & mail

What it is

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to 0.24.14, aio->prov_data is stored as nni_quic_conn* during dialing, but read as ex_quic_conn* during dialer close. This type confusion causes invalid object interpretation and leads to close-path hang/crash behavior. This vulnerability is fixed in 0.24.14.

At a glance

Exploitability: Can be exploited locally on the machine without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 0.1% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-05-29 20:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-07-22 06:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.1% in the next 30 days (EPSS).
Severity: 4.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-05-29 20:16 UTC
Last modified: 2026-07-22 06:10 UTC
Exploit probability: 0.1% · EPSS, next 30 days
Weakness: CWE-843
Record status: Deferred

Attack profile CVSS 3.1 · 4.5

Attack vector: Local
Complexity: High
Privileges needed: None
User interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: Low

Raw vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-44640.md and follow it. Check whether this project is affected by CVE-2026-44640. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record