{"cve":"CVE-2024-30386","nvd":{"published":"2024-04-12T16:15:37.650","modified":"2026-06-17T07:26:51.740","status":"Analyzed","description":"A Use-After-Free vulnerability in the Layer 2 Address Learning Daemon (l2ald)\n\n of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause l2ald to crash leading to a Denial-of-Service (DoS).\n\nIn an EVPN-VXLAN scenario, when \n\nstate updates are received and processed by the affected system, the correct order of some processing steps is not ensured, which can lead to an l2ald crash and restart. Whether the crash occurs depends on system internal timing which is outside the attackers control.\nThis issue affects:\n\nJunos OS: \n\n\n\n  *  All versions before 20.4R3-S8,\n  *  21.2 versions before 21.2R3-S6,\n  *  21.3 versions before 21.3R3-S5,\n  *  21.4 versions before 21.4R3-S4,\n  *  22.1 versions before 22.1R3-S3,\n  *  22.2 versions before 22.2R3-S1,\n  *  22.3 versions before 22.3R3,,\n  *  22.4 versions before 22.4R2;\n\n\n\n\nJunos OS Evolved: \n\n\n\n  *  All versions before 20.4R3-S8-EVO,\n  *  21.2-EVO versions before 21.2R3-S6-EVO, \n  *  21.3-EVO\n\n versions before 21.3R3-S5-EVO,\n  *  21.4-EVO\n\n versions before 21.4R3-S4-EVO,\n  *  22.1-EVO\n\n versions before 22.1R3-S3-EVO,\n  *  22.2-EVO\n\n versions before 22.2R3-S1-EVO,\n  *  22.3-EVO\n\n versions before 22.3R3-EVO,\n  *  22.4-EVO\n\n versions before 22.4R2-EVO.","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:H/PR:N/UI:N/S:U/C:N/I:N/A:H","score":5.3},"cwes":["CWE-416"],"references":["http://supportportal.juniper.net/JSA79184","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/JSA79184","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","juniper:junos_os_evolved"],"source":"nvd","synced_at":"2026-10-19T21:48:32.179249784+00:00"},"epss":{"cve":"CVE-2024-30386","score":0.00267,"percentile":0.1893,"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."]}