{"id":"CVE-2025-52986","aliases":["EUVD-2025-21144","GHSA-mfrf-wpm5-gv78"],"status":"published","title":"Junos OS and Junos OS Evolved: When RIB sharding is configured each time a show command is executed RPD memory leaks","description":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO, \n  *  24.4-EVO versions before 24.4R2-EVO.","severity":{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.0013,"percentile":0.02681,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-401"],"published":"2025-07-11T15:10:20Z","modified":"2026-06-17T09:37:22Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper","product":"junos_os_evolved"},{"vendor":"juniper networks","product":"junos os"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA100092","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52986"},{"url":"https://github.com/advisories/GHSA-mfrf-wpm5-gv78"}],"sources":{"cve":[{"id":"CVE-2025-52986","title":"Junos OS and Junos OS Evolved: When RIB sharding is configured each time a show command is executed RPD memory leaks","description":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO, \n  *  24.4-EVO versions before 24.4R2-EVO.","status":"published","published":"2025-07-11T15:10:20.934Z","modified":"2025-07-15T19:55:10.352Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"medium","assessor":"cna"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:32:31.309974Z"}],"euvd":[{"id":"EUVD-2025-21144","description":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO, \n  *  24.4-EVO versions before 24.4R2-EVO.","status":"published","published":"2025-07-11T15:10:20Z","modified":"2025-07-15T19:55:10Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:A/RE:M","level":"medium"}],"updated_at":"2026-11-02T20:32:07.830372Z"}],"ghsa":[{"id":"GHSA-mfrf-wpm5-gv78","title":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon...","description":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO, \n  *  24.4-EVO versions before 24.4R2-EVO.","status":"published","published":"2025-07-11T18:30:33Z","modified":"2025-07-11T18:30:40Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T15:02:59.952815Z"}],"nvd":[{"id":"CVE-2025-52986","description":"A Missing Release of Memory after Effective Lifetime vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, low privileged user to cause an impact to the availability of the device.\n\nWhen RIB sharding is enabled and a user executes one of several routing related 'show' commands, a certain amount of memory is leaked. When all available memory has been consumed rpd will crash and restart.\n\nThe leak can be monitored with the CLI command:\n\n\n\nshow task memory detail | match task_shard_mgmt_cookie\n\n\n\nwhere the allocated memory in bytes can be seen to continuously increase with each exploitation.\n\n\n\nThis issue affects:\n\nJunos OS:\n\n  *  all versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S11,\n  *  22.2 versions before 22.2R3-S7,\n  *  22.4 versions before 22.4R3-S7,\n  *  23.2 versions before 23.2R2-S4, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R2,\n  *  24.4 versions before 24.4R1-S2, 24.4R2;\n\n\nJunos OS Evolved:\n\n  *  all versions before 22.2R3-S7-EVO\n  *  22.4-EVO versions before 22.4R3-S7-EVO,\n  *  23.2-EVO versions before 23.2R2-S4-EVO,\n  *  23.4-EVO versions before 23.4R2-S4-EVO,\n  *  24.2-EVO versions before 24.2R2-EVO, \n  *  24.4-EVO versions before 24.4R2-EVO.","status":"published","published":"2025-07-11T16:15:26.02Z","modified":"2026-06-17T09:37:22.663Z","cvss":[{"version":"4.0","score":6.8,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:X/RE:M/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:11:18.285862Z"}]}}