{"id":"CVE-2026-103391","revision":"72de8e1ae88e4ddfa25ac2ce6d95f55e","records":[{"revision":"72de8e1ae88e4ddfa25ac2ce6d95f55e","observedAt":"2026-10-28T17:46:48.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-103391","aliases":[],"title":"Session Smart Router: An attacker-controlled TCP option causes an out-of-bounds write when using the TCP proxy feature","description":"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.","state":0,"publishedAt":"2026-10-28T16:33:32.354+00:00","modifiedAt":"2026-10-28T16:33:32.354+00:00","affected":[{"ecosystem":"Vendor product","name":"Session Smart Router","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Session Smart Router\",\n                    \"vendor\": \"Juniper Networks\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"7.0.5\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"7.1.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"7.1.0\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"7.2.3\",\n                            \"status\": \"affected\",\n                            \"version\": \"7.2.0\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://supportportal.juniper.net/JSA112183"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-103391","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-103391","identifiers":["CVE-2026-103391"]},"retained":false,"historicalAffected":[]}],"coverage":[]}