{"id":"CVE-2026-101968","revision":"9999161ad62249fa8e80ad7447352aeb","records":[{"revision":"9999161ad62249fa8e80ad7447352aeb","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-101968","aliases":[],"title":"Junos OS and Junos OS Evolved: EX Series, MX Series, ACX Series: An attacker causes rpd heap memory disclosure when Rosen-MVPN data-MDT is enabled","description":"An Integer Underflow (Wrap or Wraparound) vulnerability in the rpd process of Juniper Networks Junos OS on EX Series and MX Series, and Junos OS Evolved on ACX Series allows an unauthenticated adjacent attacker to cause heap memory disclosure and multicast join-state injection via a malformed Rosen-MVPN message.\n\nThis issue only affects platforms that support draft Rosen MVPN, such as the ACX Series, EX Series, and MX Series.","state":0,"publishedAt":"2026-10-14T16:43:07.66+00:00","modifiedAt":"2026-10-16T15:31:48.596+00:00","affected":[{"ecosystem":"Vendor product","name":"Junos OS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"platforms\": [\n                        \"EX Series\",\n                        \"MX Series\"\n                    ],\n                    \"product\": \"Junos OS\",\n                    \"vendor\": \"Juniper Networks\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"23.2R2-S7.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"23.4R2-S8.13\",\n                            \"status\": \"affected\",\n                            \"version\": \"23.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.2R2-S5.5\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.4R2-S5\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.2R2-S2\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.4R1-S3\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"26.2R1-S2\",\n                            \"status\": \"affected\",\n                            \"version\": \"26.2\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Junos OS Evolved","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"platforms\": [\n                        \"ACX Series\"\n                    ],\n                    \"product\": \"Junos OS Evolved\",\n                    \"vendor\": \"Juniper Networks\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"23.2R2-S7.7-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"23.4R2-S8.11-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"23.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.2R2-S5.6-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.4R2-S5-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.2R2-S2-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.4R1-S3-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"26.2R1-S2-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"26.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"23.4X100\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.2X100-D35-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2X100\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.4X300-D40-EVO\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.4X300\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/AU:Y/R:A/V:C/RE:M","score":5.3,"severity":"MEDIUM"}],"references":["https://supportportal.juniper.net/JSA112187"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101968","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-101968","identifiers":["CVE-2026-101968"]},"retained":false,"historicalAffected":[]}],"coverage":[]}