{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-36850 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-36850 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-36850 is a medium-severity denial of service vulnerability in Juniper Junos, published on 14 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-36850 and fix it if it is affected.\n\nWhat it is: CVE-2023-36850 is a medium-severity denial of service vulnerability in Juniper Junos, published on 14 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-36850 in the wild and no public exploit code.\n\nAffected product: Juniper Junos. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-36850/ (Markdown: https://insights.sbomify.com/CVE-2023-36850/index.md)","id":"CVE-2023-36850","markdown":"https://insights.sbomify.com/CVE-2023-36850/index.md","name":"CVE-2023-36850","record":{"aliases":["GHSA-386p-7ccc-jwxx"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Juniper MX Series","requires_auth":"none","summary":"An adjacent attacker can crash the MPC by sending malformed CFM packets, causing a sustained denial of service on Juniper MX Series devices.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1285","name":"Improper Validation of Specified Index, Position, or Offset in Input"}],"description":"An Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Connectivity Fault Management(CFM) module of Juniper Networks Junos OS on MX Series(except MPC10, MPC11 and LC9600) allows an adjacent attacker on the local broadcast domain to cause a Denial of Service(DoS).\n\nUpon receiving a malformed CFM packet, the MPC crashes. Continued receipt of these packets causes a sustained denial of service. This issue can only be triggered when CFM hasn't been configured.\n\nThis issue affects:\nJuniper Networks Junos OS\nAll versions prior to 19.1R3-S10 on MX Series;\n19.2 versions prior to 19.2R3-S7 on MX Series;\n19.3 versions prior to 19.3R3-S8 on MX Series;\n19.4 versions prior to 19.4R3-S12 on MX Series;\n20.1 version 20.1R1 and later versions on MX Series;\n20.2 versions prior to 20.2R3-S7 on MX Series;\n20.3 version 20.3R1 and later versions on MX Series;\n20.4 versions prior to 20.4R3-S7 on MX Series;\n21.1 versions prior to 21.1R3-S5 on MX Series;\n21.2 versions prior to 21.2R3-S4 on MX Series;\n21.3 versions prior to 21.3R3-S4 on MX Series;\n21.4 versions prior to 21.4R3-S3 on MX Series;\n22.1 versions prior to 22.1R3-S2 on MX Series;\n22.2 versions prior to 22.2R3 on MX Series;\n22.3 versions prior to 22.3R2, 22.3R3 on MX Series;\n22.4 versions prior to 22.4R2 on MX Series.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Junos OS: MX Series: An MPC will crash upon receipt of a malformed CFM packet.","id":"CVE-2023-36850","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36851"},"packages":[],"prev":{"headline":"Junos OS and Junos OS Evolved: The l2cpd will crash when a malformed LLDP packet is received","id":"CVE-2023-36849"},"products":["Junos OS"],"published":"2023-07-14","related":[{"cvss_score":9.8,"headline":"Juniper Junos OS EX Series and SRX Series PHP External Variable Modification","id":"CVE-2023-36845","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":8.8,"headline":"Juniper Junos OS Path Traversal","id":"CVE-2020-1631","kev_date_added":"2022-03-25","published":"2020-05-04"},{"cvss_score":6.7,"headline":"Juniper Junos OS Improper Isolation or Compartmentalization","id":"CVE-2025-21590","kev_date_added":"2025-03-13","published":"2025-03-12"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36851","kev_date_added":"2023-11-13","published":"2023-09-26"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series PHP External Variable Modification","id":"CVE-2023-36844","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS SRX Series Missing Authentication for Critical Function","id":"CVE-2023-36846","kev_date_added":"2023-11-13","published":"2023-08-17"},{"cvss_score":5.3,"headline":"Juniper Junos OS EX Series Missing Authentication for Critical Function","id":"CVE-2023-36847","kev_date_added":"2023-11-13","published":"2023-08-17"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-10-22","vendors":["Juniper Networks"]},"summary":"An adjacent attacker can crash the MPC by sending malformed CFM packets, causing a sustained denial of service on Juniper MX Series devices.","url":"https://insights.sbomify.com/CVE-2023-36850/"}