CVE-2026-103391

{"id": "CVE-2026-103391", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "sirt@juniper.net", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "affected": [{"source": "sirt@juniper.net", "affectedData": [{"vendor": "Juniper Networks", "product": "Session Smart Router", "versions": [{"status": "affected", "version": "0", "lessThan": "7.0.5", "versionType": "custom"}, {"status": "affected", "version": "7.1.0", "lessThan": "7.1.7", "versionType": "custom"}, {"status": "affected", "version": "7.2.0", "lessThan": "7.2.3", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-10-28T17:17:22.163", "references": [{"url": "https://supportportal.juniper.net/JSA112183", "source": "sirt@juniper.net"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "sirt@juniper.net", "description": [{"lang": "en", "value": "CWE-787"}]}], "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."}], "lastModified": "2026-10-28T17:17:22.407", "sourceIdentifier": "sirt@juniper.net"}