Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-47275

In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `nni_mqttv5_msg_decode_connect()` allows a malicious MQTT broker to crash any connecting NanoMQ MQTTv5 client (including bridge mode) with a single packet, causing remote denial of service via SIGSEGV. In `nni_mqttv5_msg_decode_connect()` (`mqtt_codec.c:1863`), the code iterates over CONNECT properties using variable `prop` when it should use `will_prop`. When a CONNECT packet has no connect-level properties (`prop == NULL`) b
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7831bf5b39f87aaf8beb6f47281053e92e971baf9d27b4c39c8f2273e18a1d39
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":"<= 0.24.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3c30febcf1902ba14484757a6918a612d703a1e11b994c9f2c3db6ca78699549 · sha256:9765b27875565650… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":2.6,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3c30febcf1902ba14484757a6918a612d703a1e11b994c9f2c3db6ca78699549 · sha256:9765b27875565650… · /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:v2:3c30febcf1902ba14484757a6918a612d703a1e11b994c9f2c3db6ca78699549 · sha256:9765b27875565650… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-52qr-3v49-wmx6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-52qr-3v49-wmx6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3c30febcf1902ba14484757a6918a612d703a1e11b994c9f2c3db6ca78699549 · sha256:9765b27875565650… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-52qr-3v49-wmx6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3c30febcf1902ba14484757a6918a612d703a1e11b994c9f2c3db6ca78699549 · sha256:9765b27875565650… · /containers/adp/0/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.

← Back to CVE Explorer