{"answers":{"affected":"It affects 1 product.","exploited":"Yes. Attackers have exploited CVE-2025-21590 in the wild since at least 13 Mar 2025.","fix":"No fix has been published for CVE-2025-21590 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 Apr 2025.","what":"CVE-2025-21590 is a medium-severity code injection vulnerability in Juniper Junos, published on 12 Mar 2025. 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-2025-21590 and fix it if it is affected.\n\nWhat it is: CVE-2025-21590 is a medium-severity code injection vulnerability in Juniper Junos, published on 12 Mar 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2025-21590 in the wild since at least 13 Mar 2025.\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-2025-21590/ (Markdown: https://insights.sbomify.com/CVE-2025-21590/index.md)","id":"CVE-2025-21590","markdown":"https://insights.sbomify.com/CVE-2025-21590/index.md","name":"CVE-2025-21590","record":{"aliases":["GHSA-jwv5-xmf5-mp56"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Junos OS","requires_auth":"high_privilege","summary":"A local attacker with shell access can inject arbitrary code into the Junos OS kernel, compromising device integrity and executing code.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"junos","vendor":"juniper"}],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-653","name":"Improper Isolation or Compartmentalization"}],"description":"An Improper Isolation or Compartmentalization vulnerability in the kernel of Juniper Networks Junos OS allows a local attacker with high privileges to compromise the integrity of the device.\n\nA local attacker with access to the shell is able to inject arbitrary code which can compromise an affected device.\nThis issue is not exploitable from the Junos CLI.\nThis issue affects Junos OS: \n\n  *  All versions before 21.2R3-S9,\n  *  21.4 versions before 21.4R3-S10, \n  *  22.2 versions before 22.2R3-S6, \n  *  22.4 versions before 22.4R3-S6, \n  *  23.2 versions before 23.2R2-S3, \n  *  23.4 versions before 23.4R2-S4,\n  *  24.2 versions before 24.2R1-S2, 24.2R2.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"exploited"},"has_fix":null,"headline":"Juniper Junos OS Improper Isolation or Compartmentalization","id":"CVE-2025-21590","indexable":true,"kev":{"dateAdded":"2025-03-13","dueDate":"2025-04-03","knownRansomwareCampaignUse":"Unknown","product":"Junos OS","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","vendorProject":"Juniper","vulnerabilityName":"Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"juniper:junos","products":["juniper:junos"],"type":"code_injection","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"Junos OS: An unauthenticated adjacent attacker sending a malformed DHCP packet causes jdhcpd to crash","id":"CVE-2025-21591"},"packages":[],"prev":{"headline":"Session Smart Router, Session Smart Conductor, WAN Assurance Router: API Authentication Bypass vulnerability","id":"CVE-2025-21589"},"products":["Junos OS"],"published":"2025-03-12","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":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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-26","vendors":["Juniper Networks"]},"summary":"A local attacker with shell access can inject arbitrary code into the Junos OS kernel, compromising device integrity and executing code.","url":"https://insights.sbomify.com/CVE-2025-21590/"}