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Vulnerabilities

Vulnerability · CVE-2026-45151

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform.

Published May 29, 2026 · catalog updated Jul 22, 2026 · NanoMQ MQTT Broker (NanoMQ)

Check if you run it

No confirmed exploitation is on record for CVE-2026-45151. EPSS is 0.33%. Act only if a listed version of NanoMQ MQTT Broker (NanoMQ) is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (NanoMQ MQTT Broker (NanoMQ)).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low2.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
Remediation
Version ranges on file
Affected products
stated named in the record

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 0.24.8

How to fix CVE-2026-45151

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-45151. EPSS is 0.33%. Act only if a listed version of NanoMQ MQTT Broker (NanoMQ) is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 0.24.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 29, 2026 · NIST NVD

    Detected

    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.

  2. Jul 22, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-45151

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-45151

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-45151

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.