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vuln-cve/data/2026/33xxx/CVE-2026-33786.json
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{
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"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-33786",
"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"state": "PUBLISHED",
"assignerShortName": "juniper",
"dateReserved": "2026-03-23T19:46:13.670Z",
"datePublished": "2026-04-09T21:28:29.648Z",
"dateUpdated": "2026-04-13T18:06:20.220Z"
},
"containers": {
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"defaultStatus": "unaffected",
"platforms": [
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"SRX2300",
"SRX4300"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "24.4R1-S3, 24.4R2",
"status": "affected",
"version": "24.4",
"versionType": "semver"
}
]
}
],
"datePublic": "2026-04-08T08:21:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
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"type": "text/html",
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).<br><br>When a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.<br><br><p>This issue affects Junos OS on SRX1600, SRX2300 and SRX4300:</p><p></p><ul><li>24.4 versions before 24.4R1-S3, 24.4R2.</li></ul>This issue does not affect Junos OS versions before 24.4R1.<p></p>"
}
],
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the chassis control daemon (chassisd) of Juniper Networks Junos OS on SRX1600, SRX2300 and SRX4300 allows a local attacker with low privileges to cause a complete Denial of Service (DoS).\n\nWhen a specific 'show chassis' CLI command is executed, chassisd crashes and restarts which causes a momentary impact to all traffic until all modules are online again.\n\nThis issue affects Junos OS on SRX1600, SRX2300 and SRX4300:\n\n\n\n * 24.4 versions before 24.4R1-S3, 24.4R2.\n\n\nThis issue does not affect Junos OS versions before 24.4R1."
}
],
"exploits": [
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"lang": "en",
"supportingMedia": [
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"type": "text/html",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
],
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
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"lang": "en",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"Automatable": "YES",
"Recovery": "AUTOMATIC",
"Safety": "NOT_DEFINED",
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"attackRequirements": "NONE",
"attackVector": "LOCAL",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"privilegesRequired": "LOW",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "MODERATE"
},
"format": "CVSS",
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"lang": "en",
"value": "GENERAL"
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]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"shortName": "juniper",
"dateUpdated": "2026-04-09T21:28:29.648Z"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://kb.juniper.net/JSA107810"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
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"value": "The following software releases have been updated to resolve this specific issue: 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases.<br>"
}
],
"value": "The following software releases have been updated to resolve this specific issue: 24.4R1-S3, 24.4R2, 25.2R1, and all subsequent releases."
}
],
"source": {
"advisory": "JSA107810",
"defect": [
"1869996"
],
"discovery": "INTERNAL"
},
"title": "Junos OS: SRX1600, SRX2300, SRX4300: When a specific show command is executed chassisd crashes",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.<br><br>Utilize CLI authorization to disallow execution of the 'show chassis' command.<br>"
}
],
"value": "Use access lists or firewall filters to limit access to the CLI only from trusted hosts and administrators.\n\nUtilize CLI authorization to disallow execution of the 'show chassis' command."
}
],
"x_generator": {
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"adp": [
{
"metrics": [
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"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-33786",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-13T17:39:17.275005Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-04-13T18:06:20.220Z"
}
}
]
}
}