CVE-2019-4378
Status: ModifiedMedium (6.5)—
IBM MQ 7.5.0.0 - 7.5.0.9, 7.1.0.0 - 7.1.0.9, 8.0.0.0 - 8.0.0.12, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.0 - 9.1.2 command server is vulnerable to a denial of service attack caused by an authenticated and authorized user using specially crafted PCF messages. IBM X-Force ID: 162084.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 6.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.38%
- Percentile among all scored CVEs: 72
- Score date: 10/17/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
CWEs
- NVD-CWE-noinfo
References
Raw JSON (NVD)
Show
{
"id": "CVE-2019-4378",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"authentication": "SINGLE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"type": "Secondary",
"source": "psirt@us.ibm.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 5.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.6
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@us.ibm.com",
"affectedData": [
{
"vendor": "IBM",
"product": "MQ",
"versions": [
{
"status": "affected",
"version": "9.0.0.1"
},
{
"status": "affected",
"version": "8.0.0.1"
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{
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"version": "8.0.0.2"
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{
"status": "affected",
"version": "8.0.0.3"
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{
"status": "affected",
"version": "8.0.0.4"
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{
"status": "affected",
"version": "8.0.0.5"
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{
"status": "affected",
"version": "8.0.0.6"
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{
"status": "affected",
"version": "8.0.0.7"
},
{
"status": "affected",
"version": "9.0.0.2"
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{
"status": "affected",
"version": "7.5.0.1"
},
{
"status": "affected",
"version": "7.5.0.2"
},
{
"status": "affected",
"version": "7.5.0.3"
},
{
"status": "affected",
"version": "7.5.0.4"
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{
"status": "affected",
"version": "7.5.0.5"
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{
"status": "affected",
"version": "7.5.0.6"
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{
"status": "affected",
"version": "7.5.0.7"
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{
"status": "affected",
"version": "7.5.0.8"
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{
"status": "affected",
"version": "8.0.0.8"
},
{
"status": "affected",
"version": "7.1.0.1"
},
{
"status": "affected",
"version": "7.1.0.2"
},
{
"status": "affected",
"version": "7.1.0.3"
},
{
"status": "affected",
"version": "7.1.0.4"
},
{
"status": "affected",
"version": "7.1.0.5"
},
{
"status": "affected",
"version": "7.1.0.6"
},
{
"status": "affected",
"version": "7.1.0.7"
},
{
"status": "affected",
"version": "8.0.0.9"
},
{
"status": "affected",
"version": "9.0.0.3"
},
{
"status": "affected",
"version": "8.0.0.0"
},
{
"status": "affected",
"version": "8.0.0.10"
},
{
"status": "affected",
"version": "9.0.0.0"
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{
"status": "affected",
"version": "9.0.0.4"
},
{
"status": "affected",
"version": "9.0.0.5"
},
{
"status": "affected",
"version": "9.1.0.0"
},
{
"status": "affected",
"version": "9.1.0.1"
},
{
"status": "affected",
"version": "9.1.1"
},
{
"status": "affected",
"version": "9.1.0.2"
},
{
"status": "affected",
"version": "9.1.2"
},
{
"status": "affected",
"version": "8.0.0.11"
},
{
"status": "affected",
"version": "9.0.0.6"
},
{
"status": "affected",
"version": "7.1.0.0"
},
{
"status": "affected",
"version": "7.1.0.8"
},
{
"status": "affected",
"version": "7.1.0.9"
},
{
"status": "affected",
"version": "7.5.0.0"
},
{
"status": "affected",
"version": "7.5.0.9"
},
{
"status": "affected",
"version": "8.0.0.12"
}
]
}
]
}
],
"published": "2019-09-26T15:15:10.380",
"references": [
{
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/162084",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "psirt@us.ibm.com"
},
{
"url": "https://supportcontent.ibm.com/support/pages/node/886885",
"tags": [
"Permissions Required",
"Vendor Advisory"
],
"source": "psirt@us.ibm.com"
},
{
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/162084",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://supportcontent.ibm.com/support/pages/node/886885",
"tags": [
"Permissions Required",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "IBM MQ 7.5.0.0 - 7.5.0.9, 7.1.0.0 - 7.1.0.9, 8.0.0.0 - 8.0.0.12, 9.0.0.0 - 9.0.0.6, 9.1.0.0 - 9.1.0.2, and 9.1.0 - 9.1.2 command server is vulnerable to a denial of service attack caused by an authenticated and authorized user using specially crafted PCF messages. IBM X-Force ID: 162084."
},
{
"lang": "es",
"value": "En IBM MQ versiones 7.5.0.0 hasta 7.5.0.9, 7.1.0.0 hasta 7.1.0.9, 8.0.0.0 hasta 8.0.0.12, 9.0.0.0 hasta 9.0.0.6, 9.1.0.0 hasta 9.1.0.2 y 9.1.0 hasta 9.1.2. El servidor de comandos es vulnerable a un ataque de denegación de servicio causado por parte de un usuario autenticado y autorizado utilizando mensajes PCF especialmente diseñados. ID de IBM X-Force: 162084."
}
],
"lastModified": "2026-06-17T02:36:27.330",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0B3E8BAA-BB8B-4C63-A986-FB29EBBD4E1F",
"versionEndIncluding": "7.1.0.9",
"versionStartIncluding": "7.1.0.0"
},
{
"criteria": "cpe:2.3:a:ibm:mq:*:*:*:*:*:*:*:*",
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"matchCriteriaId": "54B6D57B-1905-465D-BCE4-EE13032C79C7",
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"matchCriteriaId": "621438DD-AB6A-4460-97AE-63E9D8404108",
"versionEndIncluding": "8.0.0.12",
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{
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"matchCriteriaId": "A43C5FE8-5203-4821-9683-4246C229154A",
"versionEndIncluding": "9.0.0.6",
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"matchCriteriaId": "4584F29F-68F7-4D41-BE59-F6E453EAD853",
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"operator": "OR"
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],
"sourceIdentifier": "psirt@us.ibm.com"
}