{"cve":"CVE-2024-30388","nvd":{"published":"2024-04-12T16:15:38.093","modified":"2026-06-17T07:26:52.107","status":"Analyzed","description":"An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).\n\nIf a specific malformed LACP packet is received by a QFX5000 Series, or an EX4400, EX4100 or EX4650 Series device, an LACP flap will occur resulting in traffic loss.\nThis issue affects Junos OS on QFX5000 Series, and on EX4400, EX4100 or EX4650 Series:\n\n\n\n  *  20.4 versions from \n\n20.4R3-S4\n\nbefore 20.4R3-S8,\n  *  21.2 versions from \n\n21.2R3-S2\n\nbefore 21.2R3-S6,\n  *  21.4 versions from \n\n21.4R2\n\nbefore 21.4R3-S4,\n\n  *  22.1 versions from\n\n22.1R2\n\n before 22.1R3-S3,\n  *  22.2 versions before 22.2R3-S1,\n  *  22.3 versions before 22.3R2-S2, 22.3R3,\n  *  22.4 versions before 22.4R2-S1, 22.4R3.","cvss_v4":{"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","score":7.1},"cvss_v3":{"version":"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},"cwes":["CWE-653"],"references":["http://supportportal.juniper.net/JSA79089","https://www.first.org/cvss/calculator/4.0#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","http://supportportal.juniper.net/JSA79089","https://www.first.org/cvss/calculator/4.0#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"],"products":["juniper:junos"],"source":"nvd","synced_at":"2026-10-19T21:48:32.179249784+00:00"},"epss":{"cve":"CVE-2024-30388","score":0.00289,"percentile":0.21465,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}