{"id":"CVE-2026-33795","aliases":["EUVD-2026-101403","GHSA-5ggv-3g39-x5c7"],"status":"published","title":"Junos OS and Junos OS Evolved: An attacker causes a routing-daemon crash when BGP Prefix-SID routes are re-advertised","description":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.\n\nThis issue does not affect versions of Junos OS prior to 20.4R1.\nThis issue does not affect versions of Junos OS Evolved prior to 20.4R1-EVO","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00374,"percentile":0.3158,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-197"],"published":"2026-10-14T16:59:11Z","modified":"2026-10-15T16:24:19Z","products":[{"vendor":"juniper networks","product":"junos os"},{"vendor":"juniper networks","product":"junos os evolved"}],"references":[{"url":"https://supportportal.juniper.net/JSA112187","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33795"},{"url":"https://github.com/advisories/GHSA-5ggv-3g39-x5c7"}],"sources":{"cve":[{"id":"CVE-2026-33795","title":"Junos OS and Junos OS Evolved: An attacker causes a routing-daemon crash when BGP Prefix-SID routes are re-advertised","description":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.\n\nThis issue does not affect versions of Junos OS prior to 20.4R1.\nThis issue does not affect versions of Junos OS Evolved prior to 20.4R1-EVO","status":"published","published":"2026-10-14T16:59:11.351Z","modified":"2026-10-14T19:05:06.371Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-197"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-101403","description":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.\n\nThis issue does not affect versions of Junos OS prior to 20.4R1.\nThis issue does not affect versions of Junos OS Evolved prior to 20.4R1-EVO","status":"published","published":"2026-10-14T16:59:11Z","modified":"2026-10-14T19:05:06Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/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","level":"high"}],"updated_at":"2026-11-02T17:27:12.80866Z"}],"ghsa":[{"id":"GHSA-5ggv-3g39-x5c7","title":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and...","description":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.\n\nThis issue does not affect versions of Junos OS prior to 20.4R1.\nThis issue does not affect versions of Junos OS Evolved prior to 20.4R1-EVO","status":"published","published":"2026-10-14T18:32:26Z","modified":"2026-10-14T18:32:34Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:C/RE:M/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-197"],"updated_at":"2026-11-02T15:13:28.02433Z"}],"nvd":[{"id":"CVE-2026-33795","description":"A Numeric Truncation Error vulnerability in the rpd process of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker to cause a denial of service via a BGP Prefix-SID route advertisement that is subsequently re-advertised.\n\nThis issue does not affect versions of Junos OS prior to 20.4R1.\nThis issue does not affect versions of Junos OS Evolved prior to 20.4R1-EVO","status":"published","published":"2026-10-14T17:18:28.123Z","modified":"2026-10-15T16:24:19.073Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:C/RE:M/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-197"],"updated_at":"2026-11-02T14:12:59.328869Z"}]}}