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CVE-2025-68699

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In version 0.24.6, NanoMQ has a protocol parsing / forwarding inconsistency when handling shared subscriptions ($share/). A malformed SUBSCRIBE topic such as $share/ab (missing the second /) is not strictly validated during the subscription stage, so the invalid Topic Filter is stored into the subscription table. Later, when any PUBLISH matches this subscription, the broker send path (nmq_pipe_send_start_v4/v5) performs a seco
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1f99ef5ada5b4d5458efc53566c8bc07e0c77a93163a80173622f2846421954f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"nanomq","vendor":"nanomq","versions":[{"status":"affected","version":"= 0.24.6"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e8cdc4d116235a19a46239d9148201eefc8f8197147261fad3b3b1056778a733 · sha256:9fe10318c22668f2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e8cdc4d116235a19a46239d9148201eefc8f8197147261fad3b3b1056778a733 · sha256:9fe10318c22668f2… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e8cdc4d116235a19a46239d9148201eefc8f8197147261fad3b3b1056778a733 · sha256:9fe10318c22668f2… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/nanomq/nanomq/commit/89d68d678e7f841ae7baa45cba8d9bc7ddc9ef4b","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/commit/89d68d678e7f841ae7baa45cba8d9bc7ddc9ef4b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e8cdc4d116235a19a46239d9148201eefc8f8197147261fad3b3b1056778a733 · sha256:9fe10318c22668f2… · /containers/cna/references/1
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-qv5f-c6v2-2f8h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-qv5f-c6v2-2f8h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e8cdc4d116235a19a46239d9148201eefc8f8197147261fad3b3b1056778a733 · sha256:9fe10318c22668f2… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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