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CVE-2026-45151

NanoMQ: NULL Pointer Dereference

LOW
2.9
CVSS Score
Published: May 29, 2026 at 07:30 PM UTC
Updated: July 22, 2026 at 06:27 AM UTC
1 product affected across 1 vendorNanomq

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Severity
LOW2.9
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In 0.24.8 and earlier, quic_stream_recv can dereference a null substream pointer when a substream is in reopen state. The code finishes the AIO with error but does not return before locking c->mtx.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_CONFIRM
Source: cverecord
https://github.com/nanomq/nanomq/security/advisories/GHSA-9qhf-wgp4-p7w5

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.9LOWGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-476

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