{"id":"CVE-2023-36840","aliases":["EUVD-2023-40760","GHSA-vfwv-m6qg-w443"],"status":"published","title":"Junos OS and Junos OS Evolved: An rpd crash occurs when a specific L2VPN command is run","description":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.3R3-S10;\n20.1 versions prior to 20.1R3-S4;\n20.2 versions prior to 20.2R3-S6;\n20.3 versions prior to 20.3R3-S6;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S4;\n21.2 versions prior to 21.2R3-S3;\n21.3 versions prior to 21.3R3-S2;\n21.4 versions prior to 21.4R3;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R2;\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S7-EVO;\n21.1 versions prior to 21.1R3-S3-EVO;\n21.2 versions prior to 21.2R3-S5-EVO;\n21.3 versions prior to 21.3R3-S4-EVO;\n21.4 versions prior to 21.4R3-EVO;\n22.1 versions prior to 22.1R3-EVO;\n22.2 versions prior to 22.2R2-EVO;\n22.3 versions prior to 22.3R2-EVO;","severity":{"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","from":"cve"},"epss":{"day":"2026-11-09","score":0.00194,"percentile":0.09098,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-617"],"published":"2023-07-14T17:43:15Z","modified":"2026-06-17T06:07:11Z","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/JSA71647","tags":["x_transferred","Mitigation","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36840"},{"url":"https://github.com/advisories/GHSA-vfwv-m6qg-w443"}],"sources":{"cve":[{"id":"CVE-2023-36840","title":"Junos OS and Junos OS Evolved: An rpd crash occurs when a specific L2VPN command is run","description":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.3R3-S10;\n20.1 versions prior to 20.1R3-S4;\n20.2 versions prior to 20.2R3-S6;\n20.3 versions prior to 20.3R3-S6;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S4;\n21.2 versions prior to 21.2R3-S3;\n21.3 versions prior to 21.3R3-S2;\n21.4 versions prior to 21.4R3;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R2;\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S7-EVO;\n21.1 versions prior to 21.1R3-S3-EVO;\n21.2 versions prior to 21.2R3-S5-EVO;\n21.3 versions prior to 21.3R3-S4-EVO;\n21.4 versions prior to 21.4R3-EVO;\n22.1 versions prior to 22.1R3-EVO;\n22.2 versions prior to 22.2R2-EVO;\n22.3 versions prior to 22.3R2-EVO;\n","status":"published","published":"2023-07-14T17:43:15.282Z","modified":"2024-10-22T14:19:42.371Z","cvss":[{"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-617"],"updated_at":"2026-11-02T14:35:27.810438Z"}],"euvd":[{"id":"EUVD-2023-40760","description":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.3R3-S10;\n20.1 versions prior to 20.1R3-S4;\n20.2 versions prior to 20.2R3-S6;\n20.3 versions prior to 20.3R3-S6;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S4;\n21.2 versions prior to 21.2R3-S3;\n21.3 versions prior to 21.3R3-S2;\n21.4 versions prior to 21.4R3;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R2;\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S7-EVO;\n21.1 versions prior to 21.1R3-S3-EVO;\n21.2 versions prior to 21.2R3-S5-EVO;\n21.3 versions prior to 21.3R3-S4-EVO;\n21.4 versions prior to 21.4R3-EVO;\n22.1 versions prior to 22.1R3-EVO;\n22.2 versions prior to 22.2R2-EVO;\n22.3 versions prior to 22.3R2-EVO;\n","status":"published","published":"2023-07-14T17:43:15Z","modified":"2024-10-22T14:19:42Z","cvss":[{"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"}],"updated_at":"2026-11-03T00:05:22.720016Z"}],"ghsa":[{"id":"GHSA-vfwv-m6qg-w443","title":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS...","description":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.3R3-S10;\n20.1 versions prior to 20.1R3-S4;\n20.2 versions prior to 20.2R3-S6;\n20.3 versions prior to 20.3R3-S6;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S4;\n21.2 versions prior to 21.2R3-S3;\n21.3 versions prior to 21.3R3-S2;\n21.4 versions prior to 21.4R3;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R2;\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S7-EVO;\n21.1 versions prior to 21.1R3-S3-EVO;\n21.2 versions prior to 21.2R3-S5-EVO;\n21.3 versions prior to 21.3R3-S4-EVO;\n21.4 versions prior to 21.4R3-EVO;\n22.1 versions prior to 22.1R3-EVO;\n22.2 versions prior to 22.2R2-EVO;\n22.3 versions prior to 22.3R2-EVO;\n","status":"published","published":"2023-07-14T18:31:03Z","modified":"2024-04-11T21:21:44Z","cvss":[{"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-617"],"updated_at":"2026-11-02T14:57:10.781816Z"}],"nvd":[{"id":"CVE-2023-36840","description":"A Reachable Assertion vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows a locally-based, low-privileged attacker to cause a Denial of Service (DoS).\n\nOn all Junos OS and Junos OS Evolved, when a specific L2VPN command is run, RPD will crash and restart. Continued execution of this specific command will create a sustained Denial of Service (DoS) condition.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.3R3-S10;\n20.1 versions prior to 20.1R3-S4;\n20.2 versions prior to 20.2R3-S6;\n20.3 versions prior to 20.3R3-S6;\n20.4 versions prior to 20.4R3-S5;\n21.1 versions prior to 21.1R3-S4;\n21.2 versions prior to 21.2R3-S3;\n21.3 versions prior to 21.3R3-S2;\n21.4 versions prior to 21.4R3;\n22.1 versions prior to 22.1R3;\n22.2 versions prior to 22.2R2;\n22.3 versions prior to 22.3R2;\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S7-EVO;\n21.1 versions prior to 21.1R3-S3-EVO;\n21.2 versions prior to 21.2R3-S5-EVO;\n21.3 versions prior to 21.3R3-S4-EVO;\n21.4 versions prior to 21.4R3-EVO;\n22.1 versions prior to 22.1R3-EVO;\n22.2 versions prior to 22.2R2-EVO;\n22.3 versions prior to 22.3R2-EVO;\n","status":"published","published":"2023-07-14T18:15:10.29Z","modified":"2026-06-17T06:07:11.82Z","cvss":[{"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-617"],"updated_at":"2026-11-02T14:08:17.044696Z"}]}}