{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102078", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2026-09-28T17:37:38.548Z", "datePublished": "2026-10-14T16:27:24.894Z", "dateUpdated": "2026-10-14T16:27:24.894Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["SRX Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "23.2R2-S5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "23.4R2-S6", "status": "affected", "version": "23.4", "versionType": "custom"}, {"lessThan": "24.2R2-S3", "status": "affected", "version": "24.2", "versionType": "custom"}, {"lessThan": "24.4R2-S1", "status": "affected", "version": "24.4", "versionType": "custom"}, {"lessThan": "25.2R1-S1, 25.2R2", "status": "affected", "version": "25.2", "versionType": "custom"}]}], "datePublic": "2026-10-14T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">A Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).</span><br>\n\n<br>When web filtering for TCP traffic is configured, a high volume of DNS requests increases the likelihood of a flowd crash and restart, which leads to a complete service outage until the service has automatically recovered. This is a race condition outside the attacker's direct control.<br><p><br>This issue affects Junos OS on SRX Series:<br></p><ul><li>All versions before 23.2R2-S5;</li><li>from 23.4 before 23.4R2-S6;</li><li>from 24.2 before 24.2R2-S3;</li><li>from 24.4 before 24.4R2-S1;</li><li>from 25.2 before 25.2R1-S1, 25.2R2.</li></ul><br><p></p>"}], "value": "A Use After Free vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\n\n\n\nWhen web filtering for TCP traffic is configured, a high volume of DNS requests increases the likelihood of a flowd crash and restart, which leads to a complete service outage until the service has automatically recovered. This is a race condition outside the attacker's direct control.\n\nThis issue affects Junos OS on SRX Series:\n\n\n * All versions before 23.2R2-S5;\n * from 23.4 before 23.4R2-S6;\n * from 24.2 before 24.2R2-S3;\n * from 24.4 before 24.4R2-S1;\n * from 25.2 before 25.2R1-S1, 25.2R2."}], "exploits": [{"lang": "en", "supportingMedia": [{"base64": false, "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": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"cvssV4_0": {"Automatable": "YES", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/RE:M", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "MODERATE"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2026-10-14T16:27:24.894Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://supportportal.juniper.net/JSA112181"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S5, 23.4R2-S6, 24.2R2-S3, 24.4R2-S1, 25.2R1-S1, 25.2R2, 25.4R1, and all subsequent releases."}], "value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S5, 23.4R2-S6, 24.2R2-S3, 24.4R2-S1, 25.2R1-S1, 25.2R2, 25.4R1, and all subsequent releases."}], "source": {"advisory": "JSA112181", "defect": ["1879966"], "discovery": "USER"}, "title": "Junos OS: SRX Series: A high volume of DNS traffic over TCP can lead to a flowd crash", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "There are no known workarounds for this issue."}], "value": "There are no known workarounds for this issue."}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

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