{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-103391", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2026-09-30T14:27:56.628Z", "datePublished": "2026-10-28T16:33:32.354Z", "dateUpdated": "2026-10-28T16:33:32.354Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Session Smart Router", "vendor": "Juniper Networks", "versions": [{"lessThan": "7.0.5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "7.1.7", "status": "affected", "version": "7.1.0", "versionType": "custom"}, {"lessThan": "7.2.3", "status": "affected", "version": "7.2.0", "versionType": "custom"}]}], "datePublic": "2026-10-28T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length."}], "value": "An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length."}], "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": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2026-10-28T16:33:32.354Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://supportportal.juniper.net/JSA112183"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The following software releases of Session Smart Router have been updated to resolve these specific issues:<br><ul><li>7.0.5 \n\nand all subsequent releases;</li><li>7.1.7 \n\nand all subsequent releases;</li><li>7.2.3 and all subsequent releases.</li></ul>\n\n<br>"}], "value": "The following software releases of Session Smart Router have been updated to resolve these specific issues:\n * 7.0.5 \n\nand all subsequent releases;\n * 7.1.7 \n\nand all subsequent releases;\n * 7.2.3 and all subsequent releases."}], "source": {"advisory": "JSA112183", "defect": ["I95-65237"], "discovery": "INTERNAL"}, "title": "Session Smart Router: An attacker-controlled TCP option causes an out-of-bounds write when using the TCP proxy feature", "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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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Session Smart Router", "vendor": "Juniper Networks", "versions": [{"lessThan": "7.0.5", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "7.1.7", "status": "affected", "version": "7.1.0", "versionType": "custom"}, {"lessThan": "7.2.3", "status": "affected", "version": "7.2.0", "versionType": "custom"}]}], "source": "sirt@juniper.net"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An Out-of-bounds Write vulnerability in the SSR TCP proxy/optimization path in Juniper Networks Session Smart Router allows an attacker to corrupt forwarded packet data and potentially cause a data-plane crash via a transit TCP packet with a crafted TCP option length."}], "id": "CVE-2026-103391", "lastModified": "2026-10-28T17:17:22.407", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "sirt@juniper.net", "type": "Primary"}]}, "published": "2026-10-28T17:17:22.163", "references": [{"source": "sirt@juniper.net", "url": "https://supportportal.juniper.net/JSA112183"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "sirt@juniper.net", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,7.0.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.1.0,7.1.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[7.2.0,7.2.3)"}}], "enrichment": {"confidence": 86.0, "confidence_source": "matching", "scores": [{"score": 86.0, "source": "matching"}]}, "original": {"product": "Session Smart Router", "source": "cna", "vendor": "Juniper Networks"}, "product": "session_smart_router", "vendor": "juniper"}], "created": "2026-10-28T17:30:15.430353+00:00", "updated": "2026-10-28T22:00:16.641667+00:00", "vendors": ["juniper", "juniper$PRODUCT$session_smart_router"]}