CVE-2024-36856 (GCVE-0-2024-36856)
Vulnerability from cvelistv5 – Published: 2024-06-12 00:00 – Updated: 2026-04-03 16:07
VLAI
EPSS
VEX
Summary
RMQTT Broker 0.4.0 is vulnerable to Denial of Service (DoS) due to improper session resource management. An attacker can exhaust system memory and crash the daemon by establishing and maintaining a vast number of long-lived malicious publish/subscribe sessions.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- n/a
- CWE-404 - Improper Resource Shutdown or Release
Assigner
References
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T03:43:49.112Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://github.com/rmqtt/rmqtt/releases/tag/0.4.0"
},
{
"tags": [
"x_transferred"
],
"url": "https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e"
}
],
"title": "CVE Program Container"
},
{
"affected": [
{
"cpes": [
"cpe:2.3:a:rmqtt:rmqtt:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "rmqtt",
"vendor": "rmqtt",
"versions": [
{
"status": "affected",
"version": "0.4.0"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2024-36856",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-08-22T18:08:12.484880Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-404",
"description": "CWE-404 Improper Resource Shutdown or Release",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-08-22T18:19:27.997Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "RMQTT Broker 0.4.0 is vulnerable to Denial of Service (DoS) due to improper session resource management. An attacker can exhaust system memory and crash the daemon by establishing and maintaining a vast number of long-lived malicious publish/subscribe sessions."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-03T16:07:28.936Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://github.com/rmqtt/rmqtt/releases/tag/0.4.0"
},
{
"url": "https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2024-36856",
"datePublished": "2024-06-12T00:00:00.000Z",
"dateReserved": "2024-05-30T00:00:00.000Z",
"dateUpdated": "2026-04-03T16:07:28.936Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2024-36856",
"date": "2026-07-16",
"epss": "0.00544",
"percentile": "0.41971"
},
"fkie_nvd": {
"descriptions": "[{\"lang\": \"en\", \"value\": \"RMQTT Broker 0.4.0 allows remote attackers to cause a Denial of Service (daemon crash) via a certain sequence of five TCP packets.\"}, {\"lang\": \"es\", \"value\": \"RMQTT Broker 0.4.0 permite a atacantes remotos provocar una denegaci\\u00f3n de servicio (ca\\u00edda del daemon) a trav\\u00e9s de una determinada secuencia de cinco paquetes TCP. \"}]",
"id": "CVE-2024-36856",
"lastModified": "2024-11-21T09:22:42.327",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}]}",
"published": "2024-06-12T03:15:39.477",
"references": "[{\"url\": \"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Awaiting Analysis",
"weaknesses": "[{\"source\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-404\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2024-36856\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2024-06-12T03:15:39.477\",\"lastModified\":\"2026-06-17T07:37:15.087\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"RMQTT Broker 0.4.0 is vulnerable to Denial of Service (DoS) due to improper session resource management. An attacker can exhaust system memory and crash the daemon by establishing and maintaining a vast number of long-lived malicious publish/subscribe sessions.\"},{\"lang\":\"es\",\"value\":\"RMQTT Broker 0.4.0 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda del daemon) a trav\u00e9s de una determinada secuencia de cinco paquetes TCP. \"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"n/a\",\"product\":\"n/a\",\"versions\":[{\"version\":\"n/a\",\"status\":\"affected\"}]}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"affectedData\":[{\"vendor\":\"rmqtt\",\"product\":\"rmqtt\",\"defaultStatus\":\"unknown\",\"cpes\":[\"cpe:2.3:a:rmqtt:rmqtt:*:*:*:*:*:*:*:*\"],\"versions\":[{\"version\":\"0.4.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-08-22T18:08:12.484880Z\",\"id\":\"CVE-2024-36856\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-404\"}]}],\"references\":[{\"url\":\"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
"redhat_vex": {
"current_release_date": "2026-04-03T16:59:27+00:00",
"cve": "CVE-2024-36856",
"id": "CVE-2024-36856",
"initial_release_date": "2024-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "CVE-2024-36856",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-36856.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T03:43:49.112Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-36856\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-08-22T18:08:12.484880Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:rmqtt:rmqtt:*:*:*:*:*:*:*:*\"], \"vendor\": \"rmqtt\", \"product\": \"rmqtt\", \"versions\": [{\"status\": \"affected\", \"version\": \"0.4.0\"}], \"defaultStatus\": \"unknown\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-404\", \"description\": \"CWE-404 Improper Resource Shutdown or Release\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-08-22T18:18:47.487Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://github.com/rmqtt/rmqtt/releases/tag/0.4.0\"}, {\"url\": \"https://gist.github.com/pengwGit/d8410afeb0d5d11ab79f596a32178c2e\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"RMQTT Broker 0.4.0 is vulnerable to Denial of Service (DoS) due to improper session resource management. An attacker can exhaust system memory and crash the daemon by establishing and maintaining a vast number of long-lived malicious publish/subscribe sessions.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2026-04-03T16:07:28.936Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-36856\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-03T16:07:28.936Z\", \"dateReserved\": \"2024-05-30T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2024-06-12T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…