{"schemaVersion":3,"id":"CVE-2025-21599","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A Missing Release of Memory after Effective Lifetime vulnerability in the Juniper Tunnel Driver (jtd) of Juniper Networks Junos OS Evolved allows an unauthenticated network-based attacker to cause Denial of Service.\n\nReceipt of specifically malformed IPv6 packets, destined to the device, causes kernel memory to not be freed, resulting in memory exhaustion leading to a system crash and Denial of Service (DoS). Continuous receipt and processing of these packets will continue to exhaust kernel memory, creating a sustained Denial of Service (DoS) condition.\nThis issue only affects systems configured with IPv6.\n\nThis issue affects Junos OS Evolved:\n\n\n\n  *  from 22.4-EVO before 22.4R3-S5-EVO,\n  *  from 23.2-EVO before 23.2R2-S2-EVO,\n  *  from 23.4-EVO before 23.4R2-S2-EVO,\n  *  from 24.2-EVO before 24.2R1-S2-EVO, 24.2R2-EVO.\n\n\n\n\nThis issue does not affect Juniper Networks Junos OS Evolved versions prior to 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| 22.4:r1 | 22.4:r1-s1 | 22.4:r1-s2 | 22.4:r2 | 22.4:r2-s1 | 22.4:r2-s2 | 22.4:r3 | 22.4:r3-s1 | 22.4:r3-s2 | 22.4:r3-s3 | 22.4:r3-s4 | 23.2 | 23.2:r1 | 23.2:r1-s1 | 23.2:r1-s2 | 23.2:r2 | 23.2:r2-s1 | 23.4 | 23.4:r1 | 23.4:r1-s1 | 23.4:r1-s2 | 23.4:r2 | 23.4:r2-s1 | 24.2 | 24.2:r1 | 24.2:r2","eol":null,"hubHref":"/vendor/juniper/junos_os_evolved"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://supportportal.juniper.net/JSA92869","label":"supportportal.juniper.net/JSA92869","hostname":"supportportal.juniper.net","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2025-01-09T16:46:57.412Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-01-09T19:22:22.119Z","label":"Last modified","detail":"Vulnerability information 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