{"id":"CVE-2026-102035","revision":null,"records":[{"revision":"393e6072c1e14c2d9c97d72d63943719","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102035","aliases":[],"title":"Junos OS and Junos OS Evolved: An attacker causes a denial of service when MC-LAG IRB MAC synchronization is enabled","description":"A Reachable Assertion vulnerability in the l2ald process of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent attacker to cause a denial of service via an ICCP peer message when MC-LAG IRB MAC synchronization is enabled.","state":0,"publishedAt":"2026-10-14T16:50:44.469+00:00","modifiedAt":"2026-10-14T20:15:52.347+00:00","affected":[{"ecosystem":"Vendor product","name":"Junos OS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Junos OS\",\n                    \"vendor\": \"Juniper Networks\",\n                    \"versions\": 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     \"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                    \"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:N/I:N/A:H","score":6.5,"severity":"MEDIUM"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/V:C/RE:M","score":7.1,"severity":"HIGH"}],"references":["https://supportportal.juniper.net/JSA112187"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102035","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102035","identifiers":["CVE-2026-102035"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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