{"id":"CVE-2026-101990","title":"A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote configured BGP peer to cause an rpd crash, or on Junos OS remote code-execution, via sendi…","summary":"A Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote configured BGP peer to cause an rpd crash, or on Junos OS remote code-execution, via sendi…","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-121"],"vendor":"Juniper Networks","product":"Junos OS","affected":["junos_os < 23.2R2-S7.7","junos_os >= 23.4 < 23.4R2-S8.13","junos_os >= 24.2 < 24.2R2-S5.5","junos_os >= 24.4 < 24.4R2-S5","junos_os >= 25.2 < 25.2R2-S2","junos_os >= 25.4 < 25.4R1-S3","junos_os >= 26.2 < 26.2R1-S2","junos_os_evolved < 23.2R2-S7.7-EVO","junos_os_evolved >= 23.4 < 23.4R2-S8.11-EVO","junos_os_evolved >= 24.2 < 24.2R2-S5.6-EVO","junos_os_evolved >= 24.4 < 24.4R2-S5-EVO","junos_os_evolved >= 25.2 < 25.2R2-S2-EVO","junos_os_evolved >= 25.4 < 25.4R1-S3-EVO","junos_os_evolved >= 26.2 < 26.2R1-S2-EVO","junos_os_evolved 23.4X100","junos_os_evolved >= 25.2X100 < 25.2X100-D35-EVO","junos_os_evolved >= 25.4X300 < 25.4X300-D40-EVO"],"published":"2026-10-14","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:17:00.060","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101990","references":[{"url":"https://supportportal.juniper.net/JSA112187","label":"sirt@juniper.net"}],"tags":["nvd","cve.org"],"epss":0.00568,"epssPercentile":0.46875,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-10-16T03:56:36.466940Z"},"ingestedAt":"2026-10-14T17:44:53.640Z","slug":"CVE-2026-101990","body":"## Overview\n\nA Stack-based Buffer Overflow vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a remote configured BGP peer to cause an rpd crash, or on Junos OS remote code-execution, via sending a flow-spec update which is selected for re-advertisement.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}