{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-21591 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-21591 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-21591 is a critical memory corruption vulnerability in Juniper Junos, published on 12 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-21591 and fix it if it is affected.\n\nWhat it is: CVE-2024-21591 is a critical memory corruption vulnerability in Juniper Junos, published on 12 Jan 2024. 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-2024-21591 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-2024-21591/ (Markdown: https://insights.sbomify.com/CVE-2024-21591/index.md)","id":"CVE-2024-21591","markdown":"https://insights.sbomify.com/CVE-2024-21591/index.md","name":"CVE-2024-21591","record":{"aliases":["GHSA-j7xq-gvq8-pr7m"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Juniper Junos OS","requires_auth":"none","summary":"Unauthenticated attackers can achieve remote code execution and root privileges on Juniper SRX and EX devices via an out-of-bounds write in J-Web.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"An Out-of-bounds Write vulnerability in J-Web of Juniper Networks Junos OS on SRX Series and EX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS), or Remote Code Execution (RCE) and obtain root privileges on the device.\n\nThis issue is caused by use of an insecure function allowing an attacker to overwrite arbitrary memory.\n\nThis issue affects Juniper Networks Junos OS SRX Series and EX Series:\n\n  *  Junos OS versions earlier than 20.4R3-S9;\n  *  Junos OS 21.2 versions earlier than 21.2R3-S7;\n  *  Junos OS 21.3 versions earlier than 21.3R3-S5;\n  *  Junos OS 21.4 versions earlier than 21.4R3-S5;\n  *  Junos OS 22.1 versions earlier than 22.1R3-S4;\n  *  Junos OS 22.2 versions earlier than 22.2R3-S3;\n  *  Junos OS 22.3 versions earlier than 22.3R3-S2;\n  *  Junos OS 22.4 versions earlier than 22.4R2-S2, 22.4R3.","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: SRX Series and EX Series: Security Vulnerability in J-web allows a preAuth Remote Code Execution","id":"CVE-2024-21591","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos"],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"Junos OS: MX Series with MPC10, MPC11, LC9600, and MX304: A specific MPLS packet will cause a PFE crash","id":"CVE-2024-21593"},"packages":[],"prev":{"headline":"Junos OS Evolved: Packets which are not destined to the device can reach the RE","id":"CVE-2024-21590"},"products":["Junos OS"],"published":"2024-01-12","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":"total"},"state":"PUBLISHED","updated":"2024-10-25","vendors":["Juniper Networks"]},"summary":"Unauthenticated attackers can achieve remote code execution and root privileges on Juniper SRX and EX devices via an out-of-bounds write in J-Web.","url":"https://insights.sbomify.com/CVE-2024-21591/"}