{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-0026 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-0026 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-0026 is a high-severity denial of service vulnerability in Juniper Junos, published on 21 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-0026 and fix it if it is affected.\n\nWhat it is: CVE-2023-0026 is a high-severity denial of service vulnerability in Juniper Junos, published on 21 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-0026 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-2023-0026/ (Markdown: https://insights.sbomify.com/CVE-2023-0026/index.md)","id":"CVE-2023-0026","markdown":"https://insights.sbomify.com/CVE-2023-0026/index.md","name":"CVE-2023-0026","record":{"aliases":["GHSA-fq52-pj3r-g45r"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Juniper network OS","requires_auth":"none","summary":"An unauthenticated remote attacker can cause a sustained Denial of Service by sending specific BGP update messages, affecting Juniper network devices.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"},{"product":"junos_os_evolved","vendor":"juniper"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"An Improper Input Validation vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a BGP update message is received over an established BGP session, and that message contains a specific, optional transitive attribute, this session will be torn down with an update message error. This issue cannot propagate beyond an affected system as the processing error occurs as soon as the update is received. This issue is exploitable remotely as the respective attribute can propagate through unaffected systems and intermediate AS (if any). Continuous receipt of a BGP update containing this attribute will create a sustained Denial of Service (DoS) condition. Some customers have experienced these BGP session flaps which prompted Juniper SIRT to release this advisory out of cycle before fixed releases are widely available as there is an effective workaround.\n\nThis issue affects:\nJuniper Networks Junos OS\n15.1R1 and later versions prior to 20.4R3-S8;\n21.1 version 21.1R1 and later versions prior to 21.2R3-S6;\n21.3 versions prior to 21.3R3-S5;\n21.4 versions prior to 21.4R3-S4;\n22.1 versions prior to 22.1R3-S4;\n22.2 versions prior to 22.2R3-S2;\n22.3 versions prior to 22.3R2-S2, 22.3R3-S1;\n22.4 versions prior to 22.4R2-S1, 22.4R3;\n23.1 versions prior to 23.1R1-S1, 23.1R2.\n\nJuniper Networks Junos OS Evolved\nAll versions prior to 20.4R3-S8-EVO;\n21.1 version 21.1R1-EVO and later versions prior to 21.2R3-S6-EVO;\n21.3 versions prior to 21.3R3-S5-EVO;\n21.4 versions prior to 21.4R3-S4-EVO;\n22.1 versions prior to 22.1R3-S4-EVO;\n22.2 versions prior to 22.2R3-S2-EVO;\n22.3 versions prior to 22.3R2-S2-EVO, 22.3R3-S1-EVO;\n22.4 versions prior to 22.4R2-S1-EVO, 22.4R3-EVO;\n23.1 versions prior to 23.1R1-S1-EVO, 23.1R2-EVO.","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":"Denial of service in Junos OS","id":"CVE-2023-0026","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos","juniper:junos_os_evolved"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Rockwell Automation Modbus TCP AOI Server Could Leak Sensitive Information","id":"CVE-2023-0027"},"packages":[],"prev":{"headline":"Cross-site scripting in Solution Manager (BSP Application)","id":"CVE-2023-0025"},"products":["Junos OS","Junos OS Evolved"],"published":"2023-06-21","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-12-06","vendors":["Juniper Networks"]},"summary":"An unauthenticated remote attacker can cause a sustained Denial of Service by sending specific BGP update messages, affecting Juniper network devices.","url":"https://insights.sbomify.com/CVE-2023-0026/"}